25563920

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{18797}}^1$

素因数の和:18827

約数の個数: 40

約数和(自身を含む): 62935704

約数和(自身を除く): 37371784

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 680, 1360, 18797, 37594, 75188, 93985, 150376, 187970, 300752, 319549, 375940, 639098, 751880, 1278196, 1503760, 1597745, 2556392, 3195490, 5112784, 6390980, 12781960, 25563920]

約数ペア:

[(1, 25563920), (2, 12781960), (4, 6390980), (5, 5112784), (8, 3195490), (10, 2556392), (16, 1597745), (17, 1503760), (20, 1278196), (34, 751880), (40, 639098), (68, 375940), (80, 319549), (85, 300752), (136, 187970), (170, 150376), (272, 93985), (340, 75188), (680, 37594), (1360, 18797)]