20372996

素因数分解:

$2^2\times 7^1\times {\mathrm{47}}^1\times {\mathrm{113}}^1\times {\mathrm{137}}^1$

素因数の和:308

約数の個数: 48

約数和(自身を含む): 42287616

約数和(自身を除く): 21914620

約数列:

[1, 2, 4, 7, 14, 28, 47, 94, 113, 137, 188, 226, 274, 329, 452, 548, 658, 791, 959, 1316, 1582, 1918, 3164, 3836, 5311, 6439, 10622, 12878, 15481, 21244, 25756, 30962, 37177, 45073, 61924, 74354, 90146, 108367, 148708, 180292, 216734, 433468, 727607, 1455214, 2910428, 5093249, 10186498, 20372996]

約数ペア:

[(1, 20372996), (2, 10186498), (4, 5093249), (7, 2910428), (14, 1455214), (28, 727607), (47, 433468), (94, 216734), (113, 180292), (137, 148708), (188, 108367), (226, 90146), (274, 74354), (329, 61924), (452, 45073), (548, 37177), (658, 30962), (791, 25756), (959, 21244), (1316, 15481), (1582, 12878), (1918, 10622), (3164, 6439), (3836, 5311)]