20643950

素因数分解:

$2^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{149}}^1\times {\mathrm{163}}^1$

素因数の和:341

約数の個数: 48

約数和(自身を含む): 41180400

約数和(自身を除く): 20536450

約数列:

[1, 2, 5, 10, 17, 25, 34, 50, 85, 149, 163, 170, 298, 326, 425, 745, 815, 850, 1490, 1630, 2533, 2771, 3725, 4075, 5066, 5542, 7450, 8150, 12665, 13855, 24287, 25330, 27710, 48574, 63325, 69275, 121435, 126650, 138550, 242870, 412879, 607175, 825758, 1214350, 2064395, 4128790, 10321975, 20643950]

約数ペア:

[(1, 20643950), (2, 10321975), (5, 4128790), (10, 2064395), (17, 1214350), (25, 825758), (34, 607175), (50, 412879), (85, 242870), (149, 138550), (163, 126650), (170, 121435), (298, 69275), (326, 63325), (425, 48574), (745, 27710), (815, 25330), (850, 24287), (1490, 13855), (1630, 12665), (2533, 8150), (2771, 7450), (3725, 5542), (4075, 5066)]