61651240

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{421}}^1\times {\mathrm{523}}^1$

素因数の和:962

約数の個数: 64

約数和(自身を含む): 159212160

約数和(自身を除く): 97560920

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 421, 523, 842, 1046, 1684, 2092, 2105, 2615, 2947, 3368, 3661, 4184, 4210, 5230, 5894, 7322, 8420, 10460, 11788, 14644, 14735, 16840, 18305, 20920, 23576, 29288, 29470, 36610, 58940, 73220, 117880, 146440, 220183, 440366, 880732, 1100915, 1541281, 1761464, 2201830, 3082562, 4403660, 6165124, 7706405, 8807320, 12330248, 15412810, 30825620, 61651240]

約数ペア:

[(1, 61651240), (2, 30825620), (4, 15412810), (5, 12330248), (7, 8807320), (8, 7706405), (10, 6165124), (14, 4403660), (20, 3082562), (28, 2201830), (35, 1761464), (40, 1541281), (56, 1100915), (70, 880732), (140, 440366), (280, 220183), (421, 146440), (523, 117880), (842, 73220), (1046, 58940), (1684, 36610), (2092, 29470), (2105, 29288), (2615, 23576), (2947, 20920), (3368, 18305), (3661, 16840), (4184, 14735), (4210, 14644), (5230, 11788), (5894, 10460), (7322, 8420)]