278327738

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{313}}^1\times {\mathrm{1487}}^1$

素因数の和:1838

約数の個数: 32

約数和(自身を含む): 470969856

約数和(自身を除く): 192642118

約数列:

[1, 2, 13, 23, 26, 46, 299, 313, 598, 626, 1487, 2974, 4069, 7199, 8138, 14398, 19331, 34201, 38662, 68402, 93587, 187174, 444613, 465431, 889226, 930862, 6050603, 10704913, 12101206, 21409826, 139163869, 278327738]

約数ペア:

[(1, 278327738), (2, 139163869), (13, 21409826), (23, 12101206), (26, 10704913), (46, 6050603), (299, 930862), (313, 889226), (598, 465431), (626, 444613), (1487, 187174), (2974, 93587), (4069, 68402), (7199, 38662), (8138, 34201), (14398, 19331)]