20729460

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{20323}}^1$

素因数の和:20352

約数の個数: 48

約数和(自身を含む): 61459776

約数和(自身を除く): 40730316

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 17, 20, 30, 34, 51, 60, 68, 85, 102, 170, 204, 255, 340, 510, 1020, 20323, 40646, 60969, 81292, 101615, 121938, 203230, 243876, 304845, 345491, 406460, 609690, 690982, 1036473, 1219380, 1381964, 1727455, 2072946, 3454910, 4145892, 5182365, 6909820, 10364730, 20729460]

約数ペア:

[(1, 20729460), (2, 10364730), (3, 6909820), (4, 5182365), (5, 4145892), (6, 3454910), (10, 2072946), (12, 1727455), (15, 1381964), (17, 1219380), (20, 1036473), (30, 690982), (34, 609690), (51, 406460), (60, 345491), (68, 304845), (85, 243876), (102, 203230), (170, 121938), (204, 101615), (255, 81292), (340, 60969), (510, 40646), (1020, 20323)]