20762464

素因数分解:

$2^5\times {\mathrm{43}}^1\times {\mathrm{79}}^1\times {\mathrm{191}}^1$

素因数の和:323

約数の個数: 48

約数和(自身を含む): 42577920

約数和(自身を除く): 21815456

約数列:

[1, 2, 4, 8, 16, 32, 43, 79, 86, 158, 172, 191, 316, 344, 382, 632, 688, 764, 1264, 1376, 1528, 2528, 3056, 3397, 6112, 6794, 8213, 13588, 15089, 16426, 27176, 30178, 32852, 54352, 60356, 65704, 108704, 120712, 131408, 241424, 262816, 482848, 648827, 1297654, 2595308, 5190616, 10381232, 20762464]

約数ペア:

[(1, 20762464), (2, 10381232), (4, 5190616), (8, 2595308), (16, 1297654), (32, 648827), (43, 482848), (79, 262816), (86, 241424), (158, 131408), (172, 120712), (191, 108704), (316, 65704), (344, 60356), (382, 54352), (632, 32852), (688, 30178), (764, 27176), (1264, 16426), (1376, 15089), (1528, 13588), (2528, 8213), (3056, 6794), (3397, 6112)]