20434160

素因数分解:

$2^4\times 5^1\times {\mathrm{73}}^1\times {\mathrm{3499}}^1$

素因数の和:3585

約数の個数: 40

約数和(自身を含む): 48174000

約数和(自身を除く): 27739840

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 73, 80, 146, 292, 365, 584, 730, 1168, 1460, 2920, 3499, 5840, 6998, 13996, 17495, 27992, 34990, 55984, 69980, 139960, 255427, 279920, 510854, 1021708, 1277135, 2043416, 2554270, 4086832, 5108540, 10217080, 20434160]

約数ペア:

[(1, 20434160), (2, 10217080), (4, 5108540), (5, 4086832), (8, 2554270), (10, 2043416), (16, 1277135), (20, 1021708), (40, 510854), (73, 279920), (80, 255427), (146, 139960), (292, 69980), (365, 55984), (584, 34990), (730, 27992), (1168, 17495), (1460, 13996), (2920, 6998), (3499, 5840)]