31718895

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{79}}^1$

素因数の和:200

約数の個数: 64

約数和(自身を含む): 58060800

約数和(自身を除く): 26341905

約数列:

[1, 3, 5, 13, 15, 29, 39, 65, 71, 79, 87, 145, 195, 213, 237, 355, 377, 395, 435, 923, 1027, 1065, 1131, 1185, 1885, 2059, 2291, 2769, 3081, 4615, 5135, 5609, 5655, 6177, 6873, 10295, 11455, 13845, 15405, 16827, 26767, 28045, 29783, 30885, 34365, 72917, 80301, 84135, 89349, 133835, 148915, 162661, 218751, 364585, 401505, 446745, 487983, 813305, 1093755, 2114593, 2439915, 6343779, 10572965, 31718895]

約数ペア:

[(1, 31718895), (3, 10572965), (5, 6343779), (13, 2439915), (15, 2114593), (29, 1093755), (39, 813305), (65, 487983), (71, 446745), (79, 401505), (87, 364585), (145, 218751), (195, 162661), (213, 148915), (237, 133835), (355, 89349), (377, 84135), (395, 80301), (435, 72917), (923, 34365), (1027, 30885), (1065, 29783), (1131, 28045), (1185, 26767), (1885, 16827), (2059, 15405), (2291, 13845), (2769, 11455), (3081, 10295), (4615, 6873), (5135, 6177), (5609, 5655)]