20414368

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{1583}}^1$

素因数の和:1637

約数の個数: 48

約数和(自身を含む): 44706816

約数和(自身を除く): 24292448

約数列:

[1, 2, 4, 8, 13, 16, 26, 31, 32, 52, 62, 104, 124, 208, 248, 403, 416, 496, 806, 992, 1583, 1612, 3166, 3224, 6332, 6448, 12664, 12896, 20579, 25328, 41158, 49073, 50656, 82316, 98146, 164632, 196292, 329264, 392584, 637949, 658528, 785168, 1275898, 1570336, 2551796, 5103592, 10207184, 20414368]

約数ペア:

[(1, 20414368), (2, 10207184), (4, 5103592), (8, 2551796), (13, 1570336), (16, 1275898), (26, 785168), (31, 658528), (32, 637949), (52, 392584), (62, 329264), (104, 196292), (124, 164632), (208, 98146), (248, 82316), (403, 50656), (416, 49073), (496, 41158), (806, 25328), (992, 20579), (1583, 12896), (1612, 12664), (3166, 6448), (3224, 6332)]