81861240

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{83}}^1\times {\mathrm{8219}}^1$

素因数の和:8316

約数の個数: 64

約数和(自身を含む): 248572800

約数和(自身を除く): 166711560

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 83, 120, 166, 249, 332, 415, 498, 664, 830, 996, 1245, 1660, 1992, 2490, 3320, 4980, 8219, 9960, 16438, 24657, 32876, 41095, 49314, 65752, 82190, 98628, 123285, 164380, 197256, 246570, 328760, 493140, 682177, 986280, 1364354, 2046531, 2728708, 3410885, 4093062, 5457416, 6821770, 8186124, 10232655, 13643540, 16372248, 20465310, 27287080, 40930620, 81861240]

約数ペア:

[(1, 81861240), (2, 40930620), (3, 27287080), (4, 20465310), (5, 16372248), (6, 13643540), (8, 10232655), (10, 8186124), (12, 6821770), (15, 5457416), (20, 4093062), (24, 3410885), (30, 2728708), (40, 2046531), (60, 1364354), (83, 986280), (120, 682177), (166, 493140), (249, 328760), (332, 246570), (415, 197256), (498, 164380), (664, 123285), (830, 98628), (996, 82190), (1245, 65752), (1660, 49314), (1992, 41095), (2490, 32876), (3320, 24657), (4980, 16438), (8219, 9960)]