1555490720

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{631}}^1$

素因数の和:755

約数の個数: 192

約数和(自身を含む): 4403331072

約数和(自身を除く): 2847840352

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 32, 35, 40, 56, 62, 70, 71, 80, 112, 124, 140, 142, 155, 160, 217, 224, 248, 280, 284, 310, 355, 434, 496, 497, 560, 568, 620, 631, 710, 868, 992, 994, 1085, 1120, 1136, 1240, 1262, 1420, 1736, 1988, 2170, 2201, 2272, 2480, 2485, 2524, 2840, 3155, 3472, 3976, 4340, 4402, 4417, 4960, 4970, 5048, 5680, 6310, 6944, 7952, 8680, 8804, 8834, 9940, 10096, 11005, 11360, 12620, 15407, 15904, 17360, 17608, 17668, 19561, 19880, 20192, 22010, 22085, 25240, 30814, 34720, 35216, 35336, 39122, 39760, 44020, 44170, 44801, 50480, 61628, 70432, 70672, 77035, 78244, 79520, 88040, 88340, 89602, 97805, 100960, 123256, 136927, 141344, 154070, 156488, 176080, 176680, 179204, 195610, 224005, 246512, 273854, 308140, 312976, 313607, 352160, 353360, 358408, 391220, 448010, 493024, 547708, 616280, 625952, 627214, 684635, 706720, 716816, 782440, 896020, 1095416, 1232560, 1254428, 1369270, 1388831, 1433632, 1564880, 1568035, 1792040, 2190832, 2465120, 2508856, 2738540, 2777662, 3129760, 3136070, 3584080, 4381664, 5017712, 5477080, 5555324, 6272140, 6944155, 7168160, 9721817, 10035424, 10954160, 11110648, 12544280, 13888310, 19443634, 21908320, 22221296, 25088560, 27776620, 38887268, 44442592, 48609085, 50177120, 55553240, 77774536, 97218170, 111106480, 155549072, 194436340, 222212960, 311098144, 388872680, 777745360, 1555490720]

約数ペア:

[(1, 1555490720), (2, 777745360), (4, 388872680), (5, 311098144), (7, 222212960), (8, 194436340), (10, 155549072), (14, 111106480), (16, 97218170), (20, 77774536), (28, 55553240), (31, 50177120), (32, 48609085), (35, 44442592), (40, 38887268), (56, 27776620), (62, 25088560), (70, 22221296), (71, 21908320), (80, 19443634), (112, 13888310), (124, 12544280), (140, 11110648), (142, 10954160), (155, 10035424), (160, 9721817), (217, 7168160), (224, 6944155), (248, 6272140), (280, 5555324), (284, 5477080), (310, 5017712), (355, 4381664), (434, 3584080), (496, 3136070), (497, 3129760), (560, 2777662), (568, 2738540), (620, 2508856), (631, 2465120), (710, 2190832), (868, 1792040), (992, 1568035), (994, 1564880), (1085, 1433632), (1120, 1388831), (1136, 1369270), (1240, 1254428), (1262, 1232560), (1420, 1095416), (1736, 896020), (1988, 782440), (2170, 716816), (2201, 706720), (2272, 684635), (2480, 627214), (2485, 625952), (2524, 616280), (2840, 547708), (3155, 493024), (3472, 448010), (3976, 391220), (4340, 358408), (4402, 353360), (4417, 352160), (4960, 313607), (4970, 312976), (5048, 308140), (5680, 273854), (6310, 246512), (6944, 224005), (7952, 195610), (8680, 179204), (8804, 176680), (8834, 176080), (9940, 156488), (10096, 154070), (11005, 141344), (11360, 136927), (12620, 123256), (15407, 100960), (15904, 97805), (17360, 89602), (17608, 88340), (17668, 88040), (19561, 79520), (19880, 78244), (20192, 77035), (22010, 70672), (22085, 70432), (25240, 61628), (30814, 50480), (34720, 44801), (35216, 44170), (35336, 44020), (39122, 39760)]