64816960

素因数分解:

$2^6\times 5^1\times {\mathrm{13}}^1\times {\mathrm{15581}}^1$

素因数の和:15611

約数の個数: 56

約数和(自身を含む): 166228776

約数和(自身を除く): 101411816

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 130, 160, 208, 260, 320, 416, 520, 832, 1040, 2080, 4160, 15581, 31162, 62324, 77905, 124648, 155810, 202553, 249296, 311620, 405106, 498592, 623240, 810212, 997184, 1012765, 1246480, 1620424, 2025530, 2492960, 3240848, 4051060, 4985920, 6481696, 8102120, 12963392, 16204240, 32408480, 64816960]

約数ペア:

[(1, 64816960), (2, 32408480), (4, 16204240), (5, 12963392), (8, 8102120), (10, 6481696), (13, 4985920), (16, 4051060), (20, 3240848), (26, 2492960), (32, 2025530), (40, 1620424), (52, 1246480), (64, 1012765), (65, 997184), (80, 810212), (104, 623240), (130, 498592), (160, 405106), (208, 311620), (260, 249296), (320, 202553), (416, 155810), (520, 124648), (832, 77905), (1040, 62324), (2080, 31162), (4160, 15581)]