162440

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{131}}^1$

素因数の和:173

約数の個数: 32

約数和(自身を含む): 380160

約数和(自身を除く): 217720

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 131, 155, 248, 262, 310, 524, 620, 655, 1048, 1240, 1310, 2620, 4061, 5240, 8122, 16244, 20305, 32488, 40610, 81220, 162440]

約数ペア:

[(1, 162440), (2, 81220), (4, 40610), (5, 32488), (8, 20305), (10, 16244), (20, 8122), (31, 5240), (40, 4061), (62, 2620), (124, 1310), (131, 1240), (155, 1048), (248, 655), (262, 620), (310, 524)]