40021280

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{271}}^1$

素因数の和:370

約数の個数: 96

約数和(自身を含む): 103638528

約数和(自身を除く): 63617248

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 65, 71, 80, 104, 130, 142, 160, 208, 260, 271, 284, 355, 416, 520, 542, 568, 710, 923, 1040, 1084, 1136, 1355, 1420, 1846, 2080, 2168, 2272, 2710, 2840, 3523, 3692, 4336, 4615, 5420, 5680, 7046, 7384, 8672, 9230, 10840, 11360, 14092, 14768, 17615, 18460, 19241, 21680, 28184, 29536, 35230, 36920, 38482, 43360, 56368, 70460, 73840, 76964, 96205, 112736, 140920, 147680, 153928, 192410, 250133, 281840, 307856, 384820, 500266, 563680, 615712, 769640, 1000532, 1250665, 1539280, 2001064, 2501330, 3078560, 4002128, 5002660, 8004256, 10005320, 20010640, 40021280]

約数ペア:

[(1, 40021280), (2, 20010640), (4, 10005320), (5, 8004256), (8, 5002660), (10, 4002128), (13, 3078560), (16, 2501330), (20, 2001064), (26, 1539280), (32, 1250665), (40, 1000532), (52, 769640), (65, 615712), (71, 563680), (80, 500266), (104, 384820), (130, 307856), (142, 281840), (160, 250133), (208, 192410), (260, 153928), (271, 147680), (284, 140920), (355, 112736), (416, 96205), (520, 76964), (542, 73840), (568, 70460), (710, 56368), (923, 43360), (1040, 38482), (1084, 36920), (1136, 35230), (1355, 29536), (1420, 28184), (1846, 21680), (2080, 19241), (2168, 18460), (2272, 17615), (2710, 14768), (2840, 14092), (3523, 11360), (3692, 10840), (4336, 9230), (4615, 8672), (5420, 7384), (5680, 7046)]