31906160

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{2789}}^1$

素因数の和:2826

約数の個数: 80

約数和(自身を含む): 87181920

約数和(自身を除く): 55275760

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 16, 20, 22, 26, 40, 44, 52, 55, 65, 80, 88, 104, 110, 130, 143, 176, 208, 220, 260, 286, 440, 520, 572, 715, 880, 1040, 1144, 1430, 2288, 2789, 2860, 5578, 5720, 11156, 11440, 13945, 22312, 27890, 30679, 36257, 44624, 55780, 61358, 72514, 111560, 122716, 145028, 153395, 181285, 223120, 245432, 290056, 306790, 362570, 398827, 490864, 580112, 613580, 725140, 797654, 1227160, 1450280, 1595308, 1994135, 2454320, 2900560, 3190616, 3988270, 6381232, 7976540, 15953080, 31906160]

約数ペア:

[(1, 31906160), (2, 15953080), (4, 7976540), (5, 6381232), (8, 3988270), (10, 3190616), (11, 2900560), (13, 2454320), (16, 1994135), (20, 1595308), (22, 1450280), (26, 1227160), (40, 797654), (44, 725140), (52, 613580), (55, 580112), (65, 490864), (80, 398827), (88, 362570), (104, 306790), (110, 290056), (130, 245432), (143, 223120), (176, 181285), (208, 153395), (220, 145028), (260, 122716), (286, 111560), (440, 72514), (520, 61358), (572, 55780), (715, 44624), (880, 36257), (1040, 30679), (1144, 27890), (1430, 22312), (2288, 13945), (2789, 11440), (2860, 11156), (5578, 5720)]