20454630

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{257}}^1\times {\mathrm{379}}^1$

素因数の和:653

約数の個数: 64

約数和(自身を含む): 56471040

約数和(自身を除く): 36016410

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 105, 210, 257, 379, 514, 758, 771, 1137, 1285, 1542, 1799, 1895, 2274, 2570, 2653, 3598, 3790, 3855, 5306, 5397, 5685, 7710, 7959, 8995, 10794, 11370, 13265, 15918, 17990, 26530, 26985, 39795, 53970, 79590, 97403, 194806, 292209, 487015, 584418, 681821, 974030, 1363642, 1461045, 2045463, 2922090, 3409105, 4090926, 6818210, 10227315, 20454630]

約数ペア:

[(1, 20454630), (2, 10227315), (3, 6818210), (5, 4090926), (6, 3409105), (7, 2922090), (10, 2045463), (14, 1461045), (15, 1363642), (21, 974030), (30, 681821), (35, 584418), (42, 487015), (70, 292209), (105, 194806), (210, 97403), (257, 79590), (379, 53970), (514, 39795), (758, 26985), (771, 26530), (1137, 17990), (1285, 15918), (1542, 13265), (1799, 11370), (1895, 10794), (2274, 8995), (2570, 7959), (2653, 7710), (3598, 5685), (3790, 5397), (3855, 5306)]