40908920

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{151}}^1\times {\mathrm{521}}^1$

素因数の和:696

約数の個数: 64

約数和(自身を含む): 99973440

約数和(自身を除く): 59064520

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 151, 260, 302, 520, 521, 604, 755, 1042, 1208, 1510, 1963, 2084, 2605, 3020, 3926, 4168, 5210, 6040, 6773, 7852, 9815, 10420, 13546, 15704, 19630, 20840, 27092, 33865, 39260, 54184, 67730, 78520, 78671, 135460, 157342, 270920, 314684, 393355, 629368, 786710, 1022723, 1573420, 2045446, 3146840, 4090892, 5113615, 8181784, 10227230, 20454460, 40908920]

約数ペア:

[(1, 40908920), (2, 20454460), (4, 10227230), (5, 8181784), (8, 5113615), (10, 4090892), (13, 3146840), (20, 2045446), (26, 1573420), (40, 1022723), (52, 786710), (65, 629368), (104, 393355), (130, 314684), (151, 270920), (260, 157342), (302, 135460), (520, 78671), (521, 78520), (604, 67730), (755, 54184), (1042, 39260), (1208, 33865), (1510, 27092), (1963, 20840), (2084, 19630), (2605, 15704), (3020, 13546), (3926, 10420), (4168, 9815), (5210, 7852), (6040, 6773)]