16215740

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{139}}^1\times {\mathrm{307}}^1$

素因数の和:474

約数の個数: 48

約数和(自身を含む): 36220800

約数和(自身を除く): 20005060

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 139, 190, 278, 307, 380, 556, 614, 695, 1228, 1390, 1535, 2641, 2780, 3070, 5282, 5833, 6140, 10564, 11666, 13205, 23332, 26410, 29165, 42673, 52820, 58330, 85346, 116660, 170692, 213365, 426730, 810787, 853460, 1621574, 3243148, 4053935, 8107870, 16215740]

約数ペア:

[(1, 16215740), (2, 8107870), (4, 4053935), (5, 3243148), (10, 1621574), (19, 853460), (20, 810787), (38, 426730), (76, 213365), (95, 170692), (139, 116660), (190, 85346), (278, 58330), (307, 52820), (380, 42673), (556, 29165), (614, 26410), (695, 23332), (1228, 13205), (1390, 11666), (1535, 10564), (2641, 6140), (2780, 5833), (3070, 5282)]