401039680

素因数分解:

$2^6\times 5^1\times {\mathrm{1253249}}^1$

素因数の和:1253266

約数の個数: 28

約数和(自身を含む): 954976500

約数和(自身を除く): 553936820

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 1253249, 2506498, 5012996, 6266245, 10025992, 12532490, 20051984, 25064980, 40103968, 50129960, 80207936, 100259920, 200519840, 401039680]

約数ペア:

[(1, 401039680), (2, 200519840), (4, 100259920), (5, 80207936), (8, 50129960), (10, 40103968), (16, 25064980), (20, 20051984), (32, 12532490), (40, 10025992), (64, 6266245), (80, 5012996), (160, 2506498), (320, 1253249)]