778977920

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{79}}^1$

素因数の和:207

約数の個数: 256

約数和(自身を含む): 2256076800

約数和(自身を除く): 1477098880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 32, 35, 40, 56, 62, 64, 70, 71, 79, 80, 112, 124, 128, 140, 142, 155, 158, 160, 217, 224, 248, 280, 284, 310, 316, 320, 355, 395, 434, 448, 496, 497, 553, 560, 568, 620, 632, 640, 710, 790, 868, 896, 992, 994, 1085, 1106, 1120, 1136, 1240, 1264, 1420, 1580, 1736, 1984, 1988, 2170, 2201, 2212, 2240, 2272, 2449, 2480, 2485, 2528, 2765, 2840, 3160, 3472, 3968, 3976, 4340, 4402, 4424, 4480, 4544, 4898, 4960, 4970, 5056, 5530, 5609, 5680, 6320, 6944, 7952, 8680, 8804, 8848, 9088, 9796, 9920, 9940, 10112, 11005, 11060, 11218, 11360, 12245, 12640, 13888, 15407, 15904, 17143, 17360, 17608, 17696, 19592, 19840, 19880, 22010, 22120, 22436, 22720, 24490, 25280, 27776, 28045, 30814, 31808, 34286, 34720, 35216, 35392, 39184, 39263, 39760, 44020, 44240, 44872, 45440, 48980, 50560, 56090, 61628, 63616, 68572, 69440, 70432, 70784, 77035, 78368, 78526, 79520, 85715, 88040, 88480, 89744, 97960, 112180, 123256, 137144, 138880, 140864, 154070, 156736, 157052, 159040, 171430, 173879, 176080, 176960, 179488, 195920, 196315, 224360, 246512, 274288, 281728, 308140, 313472, 314104, 318080, 342860, 347758, 352160, 353920, 358976, 391840, 392630, 448720, 493024, 548576, 616280, 628208, 685720, 695516, 704320, 717952, 783680, 785260, 869395, 897440, 986048, 1097152, 1217153, 1232560, 1256416, 1371440, 1391032, 1408640, 1567360, 1570520, 1738790, 1794880, 1972096, 2194304, 2434306, 2465120, 2512832, 2742880, 2782064, 3141040, 3477580, 3589760, 4868612, 4930240, 5025664, 5485760, 5564128, 6085765, 6282080, 6955160, 9737224, 9860480, 10971520, 11128256, 12171530, 12564160, 13910320, 19474448, 22256512, 24343060, 25128320, 27820640, 38948896, 48686120, 55641280, 77897792, 97372240, 111282560, 155795584, 194744480, 389488960, 778977920]

約数ペア:

[(1, 778977920), (2, 389488960), (4, 194744480), (5, 155795584), (7, 111282560), (8, 97372240), (10, 77897792), (14, 55641280), (16, 48686120), (20, 38948896), (28, 27820640), (31, 25128320), (32, 24343060), (35, 22256512), (40, 19474448), (56, 13910320), (62, 12564160), (64, 12171530), (70, 11128256), (71, 10971520), (79, 9860480), (80, 9737224), (112, 6955160), (124, 6282080), (128, 6085765), (140, 5564128), (142, 5485760), (155, 5025664), (158, 4930240), (160, 4868612), (217, 3589760), (224, 3477580), (248, 3141040), (280, 2782064), (284, 2742880), (310, 2512832), (316, 2465120), (320, 2434306), (355, 2194304), (395, 1972096), (434, 1794880), (448, 1738790), (496, 1570520), (497, 1567360), (553, 1408640), (560, 1391032), (568, 1371440), (620, 1256416), (632, 1232560), (640, 1217153), (710, 1097152), (790, 986048), (868, 897440), (896, 869395), (992, 785260), (994, 783680), (1085, 717952), (1106, 704320), (1120, 695516), (1136, 685720), (1240, 628208), (1264, 616280), (1420, 548576), (1580, 493024), (1736, 448720), (1984, 392630), (1988, 391840), (2170, 358976), (2201, 353920), (2212, 352160), (2240, 347758), (2272, 342860), (2449, 318080), (2480, 314104), (2485, 313472), (2528, 308140), (2765, 281728), (2840, 274288), (3160, 246512), (3472, 224360), (3968, 196315), (3976, 195920), (4340, 179488), (4402, 176960), (4424, 176080), (4480, 173879), (4544, 171430), (4898, 159040), (4960, 157052), (4970, 156736), (5056, 154070), (5530, 140864), (5609, 138880), (5680, 137144), (6320, 123256), (6944, 112180), (7952, 97960), (8680, 89744), (8804, 88480), (8848, 88040), (9088, 85715), (9796, 79520), (9920, 78526), (9940, 78368), (10112, 77035), (11005, 70784), (11060, 70432), (11218, 69440), (11360, 68572), (12245, 63616), (12640, 61628), (13888, 56090), (15407, 50560), (15904, 48980), (17143, 45440), (17360, 44872), (17608, 44240), (17696, 44020), (19592, 39760), (19840, 39263), (19880, 39184), (22010, 35392), (22120, 35216), (22436, 34720), (22720, 34286), (24490, 31808), (25280, 30814), (27776, 28045)]