71978145

素因数分解:

$3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{337}}^1\times {\mathrm{491}}^1$

素因数の和:865

約数の個数: 32

約数和(自身を含む): 119733120

約数和(自身を除く): 47754975

約数列:

[1, 3, 5, 15, 29, 87, 145, 337, 435, 491, 1011, 1473, 1685, 2455, 5055, 7365, 9773, 14239, 29319, 42717, 48865, 71195, 146595, 165467, 213585, 496401, 827335, 2482005, 4798543, 14395629, 23992715, 71978145]

約数ペア:

[(1, 71978145), (3, 23992715), (5, 14395629), (15, 4798543), (29, 2482005), (87, 827335), (145, 496401), (337, 213585), (435, 165467), (491, 146595), (1011, 71195), (1473, 48865), (1685, 42717), (2455, 29319), (5055, 14239), (7365, 9773)]