31491390

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{5171}}^1$

素因数の和:5217

約数の個数: 64

約数和(自身を含む): 89372160

約数和(自身を除く): 57880770

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 29, 30, 35, 42, 58, 70, 87, 105, 145, 174, 203, 210, 290, 406, 435, 609, 870, 1015, 1218, 2030, 3045, 5171, 6090, 10342, 15513, 25855, 31026, 36197, 51710, 72394, 77565, 108591, 149959, 155130, 180985, 217182, 299918, 361970, 449877, 542955, 749795, 899754, 1049713, 1085910, 1499590, 2099426, 2249385, 3149139, 4498770, 5248565, 6298278, 10497130, 15745695, 31491390]

約数ペア:

[(1, 31491390), (2, 15745695), (3, 10497130), (5, 6298278), (6, 5248565), (7, 4498770), (10, 3149139), (14, 2249385), (15, 2099426), (21, 1499590), (29, 1085910), (30, 1049713), (35, 899754), (42, 749795), (58, 542955), (70, 449877), (87, 361970), (105, 299918), (145, 217182), (174, 180985), (203, 155130), (210, 149959), (290, 108591), (406, 77565), (435, 72394), (609, 51710), (870, 36197), (1015, 31026), (1218, 25855), (2030, 15513), (3045, 10342), (5171, 6090)]