19892010

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{127}}^1\times {\mathrm{227}}^1$

素因数の和:387

約数の個数: 64

約数和(自身を含む): 50429952

約数和(自身を除く): 30537942

約数列:

[1, 2, 3, 5, 6, 10, 15, 23, 30, 46, 69, 115, 127, 138, 227, 230, 254, 345, 381, 454, 635, 681, 690, 762, 1135, 1270, 1362, 1905, 2270, 2921, 3405, 3810, 5221, 5842, 6810, 8763, 10442, 14605, 15663, 17526, 26105, 28829, 29210, 31326, 43815, 52210, 57658, 78315, 86487, 87630, 144145, 156630, 172974, 288290, 432435, 663067, 864870, 1326134, 1989201, 3315335, 3978402, 6630670, 9946005, 19892010]

約数ペア:

[(1, 19892010), (2, 9946005), (3, 6630670), (5, 3978402), (6, 3315335), (10, 1989201), (15, 1326134), (23, 864870), (30, 663067), (46, 432435), (69, 288290), (115, 172974), (127, 156630), (138, 144145), (227, 87630), (230, 86487), (254, 78315), (345, 57658), (381, 52210), (454, 43815), (635, 31326), (681, 29210), (690, 28829), (762, 26105), (1135, 17526), (1270, 15663), (1362, 14605), (1905, 10442), (2270, 8763), (2921, 6810), (3405, 5842), (3810, 5221)]