1373399840

素因数分解:

$2^5\times 5^1\times {\mathrm{647}}^1\times {\mathrm{13267}}^1$

素因数の和:13929

約数の個数: 48

約数和(自身を含む): 3249916992

約数和(自身を除く): 1876517152

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 647, 1294, 2588, 3235, 5176, 6470, 10352, 12940, 13267, 20704, 25880, 26534, 51760, 53068, 66335, 103520, 106136, 132670, 212272, 265340, 424544, 530680, 1061360, 2122720, 8583749, 17167498, 34334996, 42918745, 68669992, 85837490, 137339984, 171674980, 274679968, 343349960, 686699920, 1373399840]

約数ペア:

[(1, 1373399840), (2, 686699920), (4, 343349960), (5, 274679968), (8, 171674980), (10, 137339984), (16, 85837490), (20, 68669992), (32, 42918745), (40, 34334996), (80, 17167498), (160, 8583749), (647, 2122720), (1294, 1061360), (2588, 530680), (3235, 424544), (5176, 265340), (6470, 212272), (10352, 132670), (12940, 106136), (13267, 103520), (20704, 66335), (25880, 53068), (26534, 51760)]