84097780

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{139}}^1\times {\mathrm{179}}^1$

素因数の和:353

約数の個数: 72

約数和(自身を含む): 193687200

約数和(自身を除く): 109589420

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 139, 169, 179, 260, 278, 338, 358, 556, 676, 695, 716, 845, 895, 1390, 1690, 1790, 1807, 2327, 2780, 3380, 3580, 3614, 4654, 7228, 9035, 9308, 11635, 18070, 23270, 23491, 24881, 30251, 36140, 46540, 46982, 49762, 60502, 93964, 99524, 117455, 121004, 124405, 151255, 234910, 248810, 302510, 323453, 469820, 497620, 605020, 646906, 1293812, 1617265, 3234530, 4204889, 6469060, 8409778, 16819556, 21024445, 42048890, 84097780]

約数ペア:

[(1, 84097780), (2, 42048890), (4, 21024445), (5, 16819556), (10, 8409778), (13, 6469060), (20, 4204889), (26, 3234530), (52, 1617265), (65, 1293812), (130, 646906), (139, 605020), (169, 497620), (179, 469820), (260, 323453), (278, 302510), (338, 248810), (358, 234910), (556, 151255), (676, 124405), (695, 121004), (716, 117455), (845, 99524), (895, 93964), (1390, 60502), (1690, 49762), (1790, 46982), (1807, 46540), (2327, 36140), (2780, 30251), (3380, 24881), (3580, 23491), (3614, 23270), (4654, 18070), (7228, 11635), (9035, 9308)]