515998720

素因数分解:

$2^{10}\times 5^1\times {\mathrm{31}}^1\times {\mathrm{3251}}^1$

素因数の和:3307

約数の個数: 88

約数和(自身を含む): 1278114048

約数和(自身を除く): 762115328

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 248, 256, 310, 320, 496, 512, 620, 640, 992, 1024, 1240, 1280, 1984, 2480, 2560, 3251, 3968, 4960, 5120, 6502, 7936, 9920, 13004, 15872, 16255, 19840, 26008, 31744, 32510, 39680, 52016, 65020, 79360, 100781, 104032, 130040, 158720, 201562, 208064, 260080, 403124, 416128, 503905, 520160, 806248, 832256, 1007810, 1040320, 1612496, 1664512, 2015620, 2080640, 3224992, 3329024, 4031240, 4161280, 6449984, 8062480, 8322560, 12899968, 16124960, 16645120, 25799936, 32249920, 51599872, 64499840, 103199744, 128999680, 257999360, 515998720]

約数ペア:

[(1, 515998720), (2, 257999360), (4, 128999680), (5, 103199744), (8, 64499840), (10, 51599872), (16, 32249920), (20, 25799936), (31, 16645120), (32, 16124960), (40, 12899968), (62, 8322560), (64, 8062480), (80, 6449984), (124, 4161280), (128, 4031240), (155, 3329024), (160, 3224992), (248, 2080640), (256, 2015620), (310, 1664512), (320, 1612496), (496, 1040320), (512, 1007810), (620, 832256), (640, 806248), (992, 520160), (1024, 503905), (1240, 416128), (1280, 403124), (1984, 260080), (2480, 208064), (2560, 201562), (3251, 158720), (3968, 130040), (4960, 104032), (5120, 100781), (6502, 79360), (7936, 65020), (9920, 52016), (13004, 39680), (15872, 32510), (16255, 31744), (19840, 26008)]