1296704780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{19}}^2\times {\mathrm{25657}}^1$

素因数の和:25711

約数の個数: 72

約数和(自身を含む): 3284634528

約数和(自身を除く): 1987929748

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 28, 35, 38, 70, 76, 95, 133, 140, 190, 266, 361, 380, 532, 665, 722, 1330, 1444, 1805, 2527, 2660, 3610, 5054, 7220, 10108, 12635, 25270, 25657, 50540, 51314, 102628, 128285, 179599, 256570, 359198, 487483, 513140, 718396, 897995, 974966, 1795990, 1949932, 2437415, 3412381, 3591980, 4874830, 6824762, 9262177, 9749660, 13649524, 17061905, 18524354, 34123810, 37048708, 46310885, 64835239, 68247620, 92621770, 129670478, 185243540, 259340956, 324176195, 648352390, 1296704780]

約数ペア:

[(1, 1296704780), (2, 648352390), (4, 324176195), (5, 259340956), (7, 185243540), (10, 129670478), (14, 92621770), (19, 68247620), (20, 64835239), (28, 46310885), (35, 37048708), (38, 34123810), (70, 18524354), (76, 17061905), (95, 13649524), (133, 9749660), (140, 9262177), (190, 6824762), (266, 4874830), (361, 3591980), (380, 3412381), (532, 2437415), (665, 1949932), (722, 1795990), (1330, 974966), (1444, 897995), (1805, 718396), (2527, 513140), (2660, 487483), (3610, 359198), (5054, 256570), (7220, 179599), (10108, 128285), (12635, 102628), (25270, 51314), (25657, 50540)]