68387240

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{131}}^1\times {\mathrm{421}}^1$

素因数の和:594

約数の個数: 64

約数和(自身を含む): 160427520

約数和(自身を除く): 92040280

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 131, 155, 248, 262, 310, 421, 524, 620, 655, 842, 1048, 1240, 1310, 1684, 2105, 2620, 3368, 4061, 4210, 5240, 8122, 8420, 13051, 16244, 16840, 20305, 26102, 32488, 40610, 52204, 55151, 65255, 81220, 104408, 110302, 130510, 162440, 220604, 261020, 275755, 441208, 522040, 551510, 1103020, 1709681, 2206040, 3419362, 6838724, 8548405, 13677448, 17096810, 34193620, 68387240]

約数ペア:

[(1, 68387240), (2, 34193620), (4, 17096810), (5, 13677448), (8, 8548405), (10, 6838724), (20, 3419362), (31, 2206040), (40, 1709681), (62, 1103020), (124, 551510), (131, 522040), (155, 441208), (248, 275755), (262, 261020), (310, 220604), (421, 162440), (524, 130510), (620, 110302), (655, 104408), (842, 81220), (1048, 65255), (1240, 55151), (1310, 52204), (1684, 40610), (2105, 32488), (2620, 26102), (3368, 20305), (4061, 16840), (4210, 16244), (5240, 13051), (8122, 8420)]