2178496775

素因数分解:

$5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{101}}^1\times {\mathrm{499}}^1$

素因数の和:649

約数の個数: 96

約数和(自身を含む): 3541440000

約数和(自身を除く): 1362943225

約数列:

[1, 5, 7, 13, 19, 25, 35, 65, 91, 95, 101, 133, 175, 247, 325, 455, 475, 499, 505, 665, 707, 1235, 1313, 1729, 1919, 2275, 2495, 2525, 3325, 3493, 3535, 6175, 6487, 6565, 8645, 9191, 9481, 9595, 12475, 13433, 17465, 17675, 24947, 32435, 32825, 43225, 45409, 45955, 47405, 47975, 50399, 66367, 67165, 87325, 123253, 124735, 162175, 174629, 227045, 229775, 237025, 251995, 331835, 335825, 352793, 616265, 623675, 655187, 862771, 873145, 957581, 1135225, 1259975, 1659175, 1763965, 3081325, 3275935, 4313855, 4365725, 4586309, 4787905, 6703067, 8819825, 12448553, 16379675, 21569275, 22931545, 23939525, 33515335, 62242765, 87139871, 114657725, 167576675, 311213825, 435699355, 2178496775]

約数ペア:

[(1, 2178496775), (5, 435699355), (7, 311213825), (13, 167576675), (19, 114657725), (25, 87139871), (35, 62242765), (65, 33515335), (91, 23939525), (95, 22931545), (101, 21569275), (133, 16379675), (175, 12448553), (247, 8819825), (325, 6703067), (455, 4787905), (475, 4586309), (499, 4365725), (505, 4313855), (665, 3275935), (707, 3081325), (1235, 1763965), (1313, 1659175), (1729, 1259975), (1919, 1135225), (2275, 957581), (2495, 873145), (2525, 862771), (3325, 655187), (3493, 623675), (3535, 616265), (6175, 352793), (6487, 335825), (6565, 331835), (8645, 251995), (9191, 237025), (9481, 229775), (9595, 227045), (12475, 174629), (13433, 162175), (17465, 124735), (17675, 123253), (24947, 87325), (32435, 67165), (32825, 66367), (43225, 50399), (45409, 47975), (45955, 47405)]