20650340

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{1753}}^1$

素因数の和:1812

約数の個数: 48

約数和(自身を含む): 47147520

約数和(自身を除く): 26497180

約数列:

[1, 2, 4, 5, 10, 19, 20, 31, 38, 62, 76, 95, 124, 155, 190, 310, 380, 589, 620, 1178, 1753, 2356, 2945, 3506, 5890, 7012, 8765, 11780, 17530, 33307, 35060, 54343, 66614, 108686, 133228, 166535, 217372, 271715, 333070, 543430, 666140, 1032517, 1086860, 2065034, 4130068, 5162585, 10325170, 20650340]

約数ペア:

[(1, 20650340), (2, 10325170), (4, 5162585), (5, 4130068), (10, 2065034), (19, 1086860), (20, 1032517), (31, 666140), (38, 543430), (62, 333070), (76, 271715), (95, 217372), (124, 166535), (155, 133228), (190, 108686), (310, 66614), (380, 54343), (589, 35060), (620, 33307), (1178, 17530), (1753, 11780), (2356, 8765), (2945, 7012), (3506, 5890)]