31879160

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{547}}^1$

素因数の和:636

約数の個数: 64

約数和(自身を含む): 75755520

約数和(自身を除く): 43876360

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 47, 62, 94, 124, 155, 188, 235, 248, 310, 376, 470, 547, 620, 940, 1094, 1240, 1457, 1880, 2188, 2735, 2914, 4376, 5470, 5828, 7285, 10940, 11656, 14570, 16957, 21880, 25709, 29140, 33914, 51418, 58280, 67828, 84785, 102836, 128545, 135656, 169570, 205672, 257090, 339140, 514180, 678280, 796979, 1028360, 1593958, 3187916, 3984895, 6375832, 7969790, 15939580, 31879160]

約数ペア:

[(1, 31879160), (2, 15939580), (4, 7969790), (5, 6375832), (8, 3984895), (10, 3187916), (20, 1593958), (31, 1028360), (40, 796979), (47, 678280), (62, 514180), (94, 339140), (124, 257090), (155, 205672), (188, 169570), (235, 135656), (248, 128545), (310, 102836), (376, 84785), (470, 67828), (547, 58280), (620, 51418), (940, 33914), (1094, 29140), (1240, 25709), (1457, 21880), (1880, 16957), (2188, 14570), (2735, 11656), (2914, 10940), (4376, 7285), (5470, 5828)]