289703680

素因数分解:

$2^8\times 5^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{149}}^1$

素因数の和:215

約数の個数: 216

約数和(自身を含む): 838857600

約数和(自身を除く): 549153920

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 32, 35, 40, 49, 56, 62, 64, 70, 80, 98, 112, 124, 128, 140, 149, 155, 160, 196, 217, 224, 245, 248, 256, 280, 298, 310, 320, 392, 434, 448, 490, 496, 560, 596, 620, 640, 745, 784, 868, 896, 980, 992, 1043, 1085, 1120, 1192, 1240, 1280, 1490, 1519, 1568, 1736, 1792, 1960, 1984, 2086, 2170, 2240, 2384, 2480, 2980, 3038, 3136, 3472, 3920, 3968, 4172, 4340, 4480, 4619, 4768, 4960, 5215, 5960, 6076, 6272, 6944, 7301, 7595, 7840, 7936, 8344, 8680, 8960, 9238, 9536, 9920, 10430, 11920, 12152, 12544, 13888, 14602, 15190, 15680, 16688, 17360, 18476, 19072, 19840, 20860, 23095, 23840, 24304, 27776, 29204, 30380, 31360, 32333, 33376, 34720, 36505, 36952, 38144, 39680, 41720, 46190, 47680, 48608, 55552, 58408, 60760, 62720, 64666, 66752, 69440, 73010, 73904, 83440, 92380, 95360, 97216, 116816, 121520, 129332, 133504, 138880, 146020, 147808, 161665, 166880, 184760, 190720, 194432, 226331, 233632, 243040, 258664, 267008, 277760, 292040, 295616, 323330, 333760, 369520, 388864, 452662, 467264, 486080, 517328, 584080, 591232, 646660, 667520, 739040, 905324, 934528, 972160, 1034656, 1131655, 1168160, 1182464, 1293320, 1335040, 1478080, 1810648, 1869056, 1944320, 2069312, 2263310, 2336320, 2586640, 2956160, 3621296, 4138624, 4526620, 4672640, 5173280, 5912320, 7242592, 8277248, 9053240, 9345280, 10346560, 14485184, 18106480, 20693120, 28970368, 36212960, 41386240, 57940736, 72425920, 144851840, 289703680]

約数ペア:

[(1, 289703680), (2, 144851840), (4, 72425920), (5, 57940736), (7, 41386240), (8, 36212960), (10, 28970368), (14, 20693120), (16, 18106480), (20, 14485184), (28, 10346560), (31, 9345280), (32, 9053240), (35, 8277248), (40, 7242592), (49, 5912320), (56, 5173280), (62, 4672640), (64, 4526620), (70, 4138624), (80, 3621296), (98, 2956160), (112, 2586640), (124, 2336320), (128, 2263310), (140, 2069312), (149, 1944320), (155, 1869056), (160, 1810648), (196, 1478080), (217, 1335040), (224, 1293320), (245, 1182464), (248, 1168160), (256, 1131655), (280, 1034656), (298, 972160), (310, 934528), (320, 905324), (392, 739040), (434, 667520), (448, 646660), (490, 591232), (496, 584080), (560, 517328), (596, 486080), (620, 467264), (640, 452662), (745, 388864), (784, 369520), (868, 333760), (896, 323330), (980, 295616), (992, 292040), (1043, 277760), (1085, 267008), (1120, 258664), (1192, 243040), (1240, 233632), (1280, 226331), (1490, 194432), (1519, 190720), (1568, 184760), (1736, 166880), (1792, 161665), (1960, 147808), (1984, 146020), (2086, 138880), (2170, 133504), (2240, 129332), (2384, 121520), (2480, 116816), (2980, 97216), (3038, 95360), (3136, 92380), (3472, 83440), (3920, 73904), (3968, 73010), (4172, 69440), (4340, 66752), (4480, 64666), (4619, 62720), (4768, 60760), (4960, 58408), (5215, 55552), (5960, 48608), (6076, 47680), (6272, 46190), (6944, 41720), (7301, 39680), (7595, 38144), (7840, 36952), (7936, 36505), (8344, 34720), (8680, 33376), (8960, 32333), (9238, 31360), (9536, 30380), (9920, 29204), (10430, 27776), (11920, 24304), (12152, 23840), (12544, 23095), (13888, 20860), (14602, 19840), (15190, 19072), (15680, 18476), (16688, 17360)]