64989975

素因数分解:

$3^1\times 5^2\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{773}}^1$

素因数の和:864

約数の個数: 48

約数和(自身を含む): 115171200

約数和(自身を除く): 50181225

約数列:

[1, 3, 5, 15, 19, 25, 57, 59, 75, 95, 177, 285, 295, 475, 773, 885, 1121, 1425, 1475, 2319, 3363, 3865, 4425, 5605, 11595, 14687, 16815, 19325, 28025, 44061, 45607, 57975, 73435, 84075, 136821, 220305, 228035, 367175, 684105, 866533, 1101525, 1140175, 2599599, 3420525, 4332665, 12997995, 21663325, 64989975]

約数ペア:

[(1, 64989975), (3, 21663325), (5, 12997995), (15, 4332665), (19, 3420525), (25, 2599599), (57, 1140175), (59, 1101525), (75, 866533), (95, 684105), (177, 367175), (285, 228035), (295, 220305), (475, 136821), (773, 84075), (885, 73435), (1121, 57975), (1425, 45607), (1475, 44061), (2319, 28025), (3363, 19325), (3865, 16815), (4425, 14687), (5605, 11595)]