28278744

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{233}}^1\times {\mathrm{389}}^1$

素因数の和:644

約数の個数: 64

約数和(自身を含む): 76658400

約数和(自身を除く): 48379656

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 39, 52, 78, 104, 156, 233, 312, 389, 466, 699, 778, 932, 1167, 1398, 1556, 1864, 2334, 2796, 3029, 3112, 4668, 5057, 5592, 6058, 9087, 9336, 10114, 12116, 15171, 18174, 20228, 24232, 30342, 36348, 40456, 60684, 72696, 90637, 121368, 181274, 271911, 362548, 543822, 725096, 1087644, 1178281, 2175288, 2356562, 3534843, 4713124, 7069686, 9426248, 14139372, 28278744]

約数ペア:

[(1, 28278744), (2, 14139372), (3, 9426248), (4, 7069686), (6, 4713124), (8, 3534843), (12, 2356562), (13, 2175288), (24, 1178281), (26, 1087644), (39, 725096), (52, 543822), (78, 362548), (104, 271911), (156, 181274), (233, 121368), (312, 90637), (389, 72696), (466, 60684), (699, 40456), (778, 36348), (932, 30342), (1167, 24232), (1398, 20228), (1556, 18174), (1864, 15171), (2334, 12116), (2796, 10114), (3029, 9336), (3112, 9087), (4668, 6058), (5057, 5592)]