64428760

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{181}}^1\times {\mathrm{809}}^1$

素因数の和:1012

約数の個数: 64

約数和(自身を含む): 159213600

約数和(自身を除く): 94784840

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 181, 220, 362, 440, 724, 809, 905, 1448, 1618, 1810, 1991, 3236, 3620, 3982, 4045, 6472, 7240, 7964, 8090, 8899, 9955, 15928, 16180, 17798, 19910, 32360, 35596, 39820, 44495, 71192, 79640, 88990, 146429, 177980, 292858, 355960, 585716, 732145, 1171432, 1464290, 1610719, 2928580, 3221438, 5857160, 6442876, 8053595, 12885752, 16107190, 32214380, 64428760]

約数ペア:

[(1, 64428760), (2, 32214380), (4, 16107190), (5, 12885752), (8, 8053595), (10, 6442876), (11, 5857160), (20, 3221438), (22, 2928580), (40, 1610719), (44, 1464290), (55, 1171432), (88, 732145), (110, 585716), (181, 355960), (220, 292858), (362, 177980), (440, 146429), (724, 88990), (809, 79640), (905, 71192), (1448, 44495), (1618, 39820), (1810, 35596), (1991, 32360), (3236, 19910), (3620, 17798), (3982, 16180), (4045, 15928), (6472, 9955), (7240, 8899), (7964, 8090)]