1813078875

素因数分解:

$3^1\times 5^3\times {\mathrm{43}}^1\times {\mathrm{229}}^1\times {\mathrm{491}}^1$

素因数の和:781

約数の個数: 64

約数和(自身を含む): 3106920960

約数和(自身を除く): 1293842085

約数列:

[1, 3, 5, 15, 25, 43, 75, 125, 129, 215, 229, 375, 491, 645, 687, 1075, 1145, 1473, 2455, 3225, 3435, 5375, 5725, 7365, 9847, 12275, 16125, 17175, 21113, 28625, 29541, 36825, 49235, 61375, 63339, 85875, 105565, 112439, 147705, 184125, 246175, 316695, 337317, 527825, 562195, 738525, 1230875, 1583475, 1686585, 2639125, 2810975, 3692625, 4834877, 7917375, 8432925, 14054875, 14504631, 24174385, 42164625, 72523155, 120871925, 362615775, 604359625, 1813078875]

約数ペア:

[(1, 1813078875), (3, 604359625), (5, 362615775), (15, 120871925), (25, 72523155), (43, 42164625), (75, 24174385), (125, 14504631), (129, 14054875), (215, 8432925), (229, 7917375), (375, 4834877), (491, 3692625), (645, 2810975), (687, 2639125), (1075, 1686585), (1145, 1583475), (1473, 1230875), (2455, 738525), (3225, 562195), (3435, 527825), (5375, 337317), (5725, 316695), (7365, 246175), (9847, 184125), (12275, 147705), (16125, 112439), (17175, 105565), (21113, 85875), (28625, 63339), (29541, 61375), (36825, 49235)]