19956150

素因数分解:

$2^1\times 3^2\times 5^2\times {\mathrm{61}}^1\times {\mathrm{727}}^1$

素因数の和:806

約数の個数: 72

約数和(自身を含む): 54569424

約数和(自身を除く): 34613274

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 25, 30, 45, 50, 61, 75, 90, 122, 150, 183, 225, 305, 366, 450, 549, 610, 727, 915, 1098, 1454, 1525, 1830, 2181, 2745, 3050, 3635, 4362, 4575, 5490, 6543, 7270, 9150, 10905, 13086, 13725, 18175, 21810, 27450, 32715, 36350, 44347, 54525, 65430, 88694, 109050, 133041, 163575, 221735, 266082, 327150, 399123, 443470, 665205, 798246, 1108675, 1330410, 1995615, 2217350, 3326025, 3991230, 6652050, 9978075, 19956150]

約数ペア:

[(1, 19956150), (2, 9978075), (3, 6652050), (5, 3991230), (6, 3326025), (9, 2217350), (10, 1995615), (15, 1330410), (18, 1108675), (25, 798246), (30, 665205), (45, 443470), (50, 399123), (61, 327150), (75, 266082), (90, 221735), (122, 163575), (150, 133041), (183, 109050), (225, 88694), (305, 65430), (366, 54525), (450, 44347), (549, 36350), (610, 32715), (727, 27450), (915, 21810), (1098, 18175), (1454, 13725), (1525, 13086), (1830, 10905), (2181, 9150), (2745, 7270), (3050, 6543), (3635, 5490), (4362, 4575)]