127902580

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{79}}^1\times {\mathrm{479}}^1$

素因数の和:593

約数の個数: 72

約数和(自身を含む): 295142400

約数和(自身を除く): 167239820

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 79, 130, 158, 169, 260, 316, 338, 395, 479, 676, 790, 845, 958, 1027, 1580, 1690, 1916, 2054, 2395, 3380, 4108, 4790, 5135, 6227, 9580, 10270, 12454, 13351, 20540, 24908, 26702, 31135, 37841, 53404, 62270, 66755, 75682, 80951, 124540, 133510, 151364, 161902, 189205, 267020, 323804, 378410, 404755, 491933, 756820, 809510, 983866, 1619020, 1967732, 2459665, 4919330, 6395129, 9838660, 12790258, 25580516, 31975645, 63951290, 127902580]

約数ペア:

[(1, 127902580), (2, 63951290), (4, 31975645), (5, 25580516), (10, 12790258), (13, 9838660), (20, 6395129), (26, 4919330), (52, 2459665), (65, 1967732), (79, 1619020), (130, 983866), (158, 809510), (169, 756820), (260, 491933), (316, 404755), (338, 378410), (395, 323804), (479, 267020), (676, 189205), (790, 161902), (845, 151364), (958, 133510), (1027, 124540), (1580, 80951), (1690, 75682), (1916, 66755), (2054, 62270), (2395, 53404), (3380, 37841), (4108, 31135), (4790, 26702), (5135, 24908), (6227, 20540), (9580, 13351), (10270, 12454)]