18924520

素因数分解:

$2^3\times 5^1\times {\mathrm{73}}^1\times {\mathrm{6481}}^1$

素因数の和:6565

約数の個数: 32

約数和(自身を含む): 43170120

約数和(自身を除く): 24245600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 73, 146, 292, 365, 584, 730, 1460, 2920, 6481, 12962, 25924, 32405, 51848, 64810, 129620, 259240, 473113, 946226, 1892452, 2365565, 3784904, 4731130, 9462260, 18924520]

約数ペア:

[(1, 18924520), (2, 9462260), (4, 4731130), (5, 3784904), (8, 2365565), (10, 1892452), (20, 946226), (40, 473113), (73, 259240), (146, 129620), (292, 64810), (365, 51848), (584, 32405), (730, 25924), (1460, 12962), (2920, 6481)]