18867304

素因数分解:

$2^3\times {\mathrm{19}}^2\times {\mathrm{47}}^1\times {\mathrm{139}}^1$

素因数の和:230

約数の個数: 48

約数和(自身を含む): 38404800

約数和(自身を除く): 19537496

約数列:

[1, 2, 4, 8, 19, 38, 47, 76, 94, 139, 152, 188, 278, 361, 376, 556, 722, 893, 1112, 1444, 1786, 2641, 2888, 3572, 5282, 6533, 7144, 10564, 13066, 16967, 21128, 26132, 33934, 50179, 52264, 67868, 100358, 124127, 135736, 200716, 248254, 401432, 496508, 993016, 2358413, 4716826, 9433652, 18867304]

約数ペア:

[(1, 18867304), (2, 9433652), (4, 4716826), (8, 2358413), (19, 993016), (38, 496508), (47, 401432), (76, 248254), (94, 200716), (139, 135736), (152, 124127), (188, 100358), (278, 67868), (361, 52264), (376, 50179), (556, 33934), (722, 26132), (893, 21128), (1112, 16967), (1444, 13066), (1786, 10564), (2641, 7144), (2888, 6533), (3572, 5282)]