38560520

素因数分解:

$2^3\times 5^1\times {\mathrm{409}}^1\times {\mathrm{2357}}^1$

素因数の和:2777

約数の個数: 32

約数和(自身を含む): 87010200

約数和(自身を除く): 48449680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 409, 818, 1636, 2045, 2357, 3272, 4090, 4714, 8180, 9428, 11785, 16360, 18856, 23570, 47140, 94280, 964013, 1928026, 3856052, 4820065, 7712104, 9640130, 19280260, 38560520]

約数ペア:

[(1, 38560520), (2, 19280260), (4, 9640130), (5, 7712104), (8, 4820065), (10, 3856052), (20, 1928026), (40, 964013), (409, 94280), (818, 47140), (1636, 23570), (2045, 18856), (2357, 16360), (3272, 11785), (4090, 9428), (4714, 8180)]