31616360

素因数分解:

$2^3\times 5^1\times {\mathrm{83}}^1\times {\mathrm{89}}^1\times {\mathrm{107}}^1$

素因数の和:290

約数の個数: 64

約数和(自身を含む): 73483200

約数和(自身を除く): 41866840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 83, 89, 107, 166, 178, 214, 332, 356, 415, 428, 445, 535, 664, 712, 830, 856, 890, 1070, 1660, 1780, 2140, 3320, 3560, 4280, 7387, 8881, 9523, 14774, 17762, 19046, 29548, 35524, 36935, 38092, 44405, 47615, 59096, 71048, 73870, 76184, 88810, 95230, 147740, 177620, 190460, 295480, 355240, 380920, 790409, 1580818, 3161636, 3952045, 6323272, 7904090, 15808180, 31616360]

約数ペア:

[(1, 31616360), (2, 15808180), (4, 7904090), (5, 6323272), (8, 3952045), (10, 3161636), (20, 1580818), (40, 790409), (83, 380920), (89, 355240), (107, 295480), (166, 190460), (178, 177620), (214, 147740), (332, 95230), (356, 88810), (415, 76184), (428, 73870), (445, 71048), (535, 59096), (664, 47615), (712, 44405), (830, 38092), (856, 36935), (890, 35524), (1070, 29548), (1660, 19046), (1780, 17762), (2140, 14774), (3320, 9523), (3560, 8881), (4280, 7387)]