12977900

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{149}}^1$

素因数の和:243

約数の個数: 72

約数和(自身を含む): 30987600

約数和(自身を除く): 18009700

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 67, 100, 130, 134, 149, 260, 268, 298, 325, 335, 596, 650, 670, 745, 871, 1300, 1340, 1490, 1675, 1742, 1937, 2980, 3350, 3484, 3725, 3874, 4355, 6700, 7450, 7748, 8710, 9685, 9983, 14900, 17420, 19370, 19966, 21775, 38740, 39932, 43550, 48425, 49915, 87100, 96850, 99830, 129779, 193700, 199660, 249575, 259558, 499150, 519116, 648895, 998300, 1297790, 2595580, 3244475, 6488950, 12977900]

約数ペア:

[(1, 12977900), (2, 6488950), (4, 3244475), (5, 2595580), (10, 1297790), (13, 998300), (20, 648895), (25, 519116), (26, 499150), (50, 259558), (52, 249575), (65, 199660), (67, 193700), (100, 129779), (130, 99830), (134, 96850), (149, 87100), (260, 49915), (268, 48425), (298, 43550), (325, 39932), (335, 38740), (596, 21775), (650, 19966), (670, 19370), (745, 17420), (871, 14900), (1300, 9983), (1340, 9685), (1490, 8710), (1675, 7748), (1742, 7450), (1937, 6700), (2980, 4355), (3350, 3874), (3484, 3725)]