20506250

素因数分解:

$2^1\times 5^5\times {\mathrm{17}}^1\times {\mathrm{193}}^1$

素因数の和:237

約数の個数: 48

約数和(自身を含む): 40919256

約数和(自身を除く): 20413006

約数列:

[1, 2, 5, 10, 17, 25, 34, 50, 85, 125, 170, 193, 250, 386, 425, 625, 850, 965, 1250, 1930, 2125, 3125, 3281, 4250, 4825, 6250, 6562, 9650, 10625, 16405, 21250, 24125, 32810, 48250, 53125, 82025, 106250, 120625, 164050, 241250, 410125, 603125, 820250, 1206250, 2050625, 4101250, 10253125, 20506250]

約数ペア:

[(1, 20506250), (2, 10253125), (5, 4101250), (10, 2050625), (17, 1206250), (25, 820250), (34, 603125), (50, 410125), (85, 241250), (125, 164050), (170, 120625), (193, 106250), (250, 82025), (386, 53125), (425, 48250), (625, 32810), (850, 24125), (965, 21250), (1250, 16405), (1930, 10625), (2125, 9650), (3125, 6562), (3281, 6250), (4250, 4825)]