84239090

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{20903}}^1$

素因数の和:20954

約数の個数: 32

約数和(自身を含む): 168569856

約数和(自身を除く): 84330766

約数列:

[1, 2, 5, 10, 13, 26, 31, 62, 65, 130, 155, 310, 403, 806, 2015, 4030, 20903, 41806, 104515, 209030, 271739, 543478, 647993, 1295986, 1358695, 2717390, 3239965, 6479930, 8423909, 16847818, 42119545, 84239090]

約数ペア:

[(1, 84239090), (2, 42119545), (5, 16847818), (10, 8423909), (13, 6479930), (26, 3239965), (31, 2717390), (62, 1358695), (65, 1295986), (130, 647993), (155, 543478), (310, 271739), (403, 209030), (806, 104515), (2015, 41806), (4030, 20903)]