208895360

素因数分解:

$2^7\times 5^1\times {\mathrm{31}}^1\times {\mathrm{10529}}^1$

素因数の和:10579

約数の個数: 64

約数和(自身を含む): 515548800

約数和(自身を除く): 306653440

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 248, 310, 320, 496, 620, 640, 992, 1240, 1984, 2480, 3968, 4960, 9920, 10529, 19840, 21058, 42116, 52645, 84232, 105290, 168464, 210580, 326399, 336928, 421160, 652798, 673856, 842320, 1305596, 1347712, 1631995, 1684640, 2611192, 3263990, 3369280, 5222384, 6527980, 6738560, 10444768, 13055960, 20889536, 26111920, 41779072, 52223840, 104447680, 208895360]

約数ペア:

[(1, 208895360), (2, 104447680), (4, 52223840), (5, 41779072), (8, 26111920), (10, 20889536), (16, 13055960), (20, 10444768), (31, 6738560), (32, 6527980), (40, 5222384), (62, 3369280), (64, 3263990), (80, 2611192), (124, 1684640), (128, 1631995), (155, 1347712), (160, 1305596), (248, 842320), (310, 673856), (320, 652798), (496, 421160), (620, 336928), (640, 326399), (992, 210580), (1240, 168464), (1984, 105290), (2480, 84232), (3968, 52645), (4960, 42116), (9920, 21058), (10529, 19840)]