30393740

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^2\times {\mathrm{139}}^1$

素因数の和:219

約数の個数: 72

約数和(自身を含む): 71700720

約数和(自身を除く): 41306980

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 29, 52, 58, 65, 116, 130, 139, 145, 260, 278, 290, 377, 556, 580, 695, 754, 841, 1390, 1508, 1682, 1807, 1885, 2780, 3364, 3614, 3770, 4031, 4205, 7228, 7540, 8062, 8410, 9035, 10933, 16124, 16820, 18070, 20155, 21866, 36140, 40310, 43732, 52403, 54665, 80620, 104806, 109330, 116899, 209612, 218660, 233798, 262015, 467596, 524030, 584495, 1048060, 1168990, 1519687, 2337980, 3039374, 6078748, 7598435, 15196870, 30393740]

約数ペア:

[(1, 30393740), (2, 15196870), (4, 7598435), (5, 6078748), (10, 3039374), (13, 2337980), (20, 1519687), (26, 1168990), (29, 1048060), (52, 584495), (58, 524030), (65, 467596), (116, 262015), (130, 233798), (139, 218660), (145, 209612), (260, 116899), (278, 109330), (290, 104806), (377, 80620), (556, 54665), (580, 52403), (695, 43732), (754, 40310), (841, 36140), (1390, 21866), (1508, 20155), (1682, 18070), (1807, 16820), (1885, 16124), (2780, 10933), (3364, 9035), (3614, 8410), (3770, 8062), (4031, 7540), (4205, 7228)]