351505280

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{2531}}^1$

素因数の和:2588

約数の個数: 128

約数和(自身を含む): 991733760

約数和(自身を除く): 640228480

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 32, 35, 40, 56, 62, 64, 70, 80, 112, 124, 128, 140, 155, 160, 217, 224, 248, 280, 310, 320, 434, 448, 496, 560, 620, 640, 868, 896, 992, 1085, 1120, 1240, 1736, 1984, 2170, 2240, 2480, 2531, 3472, 3968, 4340, 4480, 4960, 5062, 6944, 8680, 9920, 10124, 12655, 13888, 17360, 17717, 19840, 20248, 25310, 27776, 34720, 35434, 40496, 50620, 69440, 70868, 78461, 80992, 88585, 101240, 138880, 141736, 156922, 161984, 177170, 202480, 283472, 313844, 323968, 354340, 392305, 404960, 549227, 566944, 627688, 708680, 784610, 809920, 1098454, 1133888, 1255376, 1417360, 1569220, 1619840, 2196908, 2267776, 2510752, 2746135, 2834720, 3138440, 4393816, 5021504, 5492270, 5669440, 6276880, 8787632, 10043008, 10984540, 11338880, 12553760, 17575264, 21969080, 25107520, 35150528, 43938160, 50215040, 70301056, 87876320, 175752640, 351505280]

約数ペア:

[(1, 351505280), (2, 175752640), (4, 87876320), (5, 70301056), (7, 50215040), (8, 43938160), (10, 35150528), (14, 25107520), (16, 21969080), (20, 17575264), (28, 12553760), (31, 11338880), (32, 10984540), (35, 10043008), (40, 8787632), (56, 6276880), (62, 5669440), (64, 5492270), (70, 5021504), (80, 4393816), (112, 3138440), (124, 2834720), (128, 2746135), (140, 2510752), (155, 2267776), (160, 2196908), (217, 1619840), (224, 1569220), (248, 1417360), (280, 1255376), (310, 1133888), (320, 1098454), (434, 809920), (448, 784610), (496, 708680), (560, 627688), (620, 566944), (640, 549227), (868, 404960), (896, 392305), (992, 354340), (1085, 323968), (1120, 313844), (1240, 283472), (1736, 202480), (1984, 177170), (2170, 161984), (2240, 156922), (2480, 141736), (2531, 138880), (3472, 101240), (3968, 88585), (4340, 80992), (4480, 78461), (4960, 70868), (5062, 69440), (6944, 50620), (8680, 40496), (9920, 35434), (10124, 34720), (12655, 27776), (13888, 25310), (17360, 20248), (17717, 19840)]