210721120

素因数分解:

$2^5\times 5^1\times {\mathrm{17}}^1\times {\mathrm{77471}}^1$

素因数の和:77503

約数の個数: 48

約数和(自身を含む): 527119488

約数和(自身を除く): 316398368

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 68, 80, 85, 136, 160, 170, 272, 340, 544, 680, 1360, 2720, 77471, 154942, 309884, 387355, 619768, 774710, 1239536, 1317007, 1549420, 2479072, 2634014, 3098840, 5268028, 6197680, 6585035, 10536056, 12395360, 13170070, 21072112, 26340140, 42144224, 52680280, 105360560, 210721120]

約数ペア:

[(1, 210721120), (2, 105360560), (4, 52680280), (5, 42144224), (8, 26340140), (10, 21072112), (16, 13170070), (17, 12395360), (20, 10536056), (32, 6585035), (34, 6197680), (40, 5268028), (68, 3098840), (80, 2634014), (85, 2479072), (136, 1549420), (160, 1317007), (170, 1239536), (272, 774710), (340, 619768), (544, 387355), (680, 309884), (1360, 154942), (2720, 77471)]