71317540

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{61}}^1\times {\mathrm{1193}}^1$

素因数の和:1277

約数の個数: 72

約数和(自身を含む): 177223032

約数和(自身を除く): 105905492

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 61, 70, 98, 122, 140, 196, 244, 245, 305, 427, 490, 610, 854, 980, 1193, 1220, 1708, 2135, 2386, 2989, 4270, 4772, 5965, 5978, 8351, 8540, 11930, 11956, 14945, 16702, 23860, 29890, 33404, 41755, 58457, 59780, 72773, 83510, 116914, 145546, 167020, 233828, 291092, 292285, 363865, 509411, 584570, 727730, 1018822, 1169140, 1455460, 2037644, 2547055, 3565877, 5094110, 7131754, 10188220, 14263508, 17829385, 35658770, 71317540]

約数ペア:

[(1, 71317540), (2, 35658770), (4, 17829385), (5, 14263508), (7, 10188220), (10, 7131754), (14, 5094110), (20, 3565877), (28, 2547055), (35, 2037644), (49, 1455460), (61, 1169140), (70, 1018822), (98, 727730), (122, 584570), (140, 509411), (196, 363865), (244, 292285), (245, 291092), (305, 233828), (427, 167020), (490, 145546), (610, 116914), (854, 83510), (980, 72773), (1193, 59780), (1220, 58457), (1708, 41755), (2135, 33404), (2386, 29890), (2989, 23860), (4270, 16702), (4772, 14945), (5965, 11956), (5978, 11930), (8351, 8540)]