84387580

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{131}}^1\times {\mathrm{1039}}^1$

素因数の和:1210

約数の個数: 48

約数和(自身を含む): 184504320

約数和(自身を除く): 100116740

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 131, 155, 262, 310, 524, 620, 655, 1039, 1310, 2078, 2620, 4061, 4156, 5195, 8122, 10390, 16244, 20305, 20780, 32209, 40610, 64418, 81220, 128836, 136109, 161045, 272218, 322090, 544436, 644180, 680545, 1361090, 2722180, 4219379, 8438758, 16877516, 21096895, 42193790, 84387580]

約数ペア:

[(1, 84387580), (2, 42193790), (4, 21096895), (5, 16877516), (10, 8438758), (20, 4219379), (31, 2722180), (62, 1361090), (124, 680545), (131, 644180), (155, 544436), (262, 322090), (310, 272218), (524, 161045), (620, 136109), (655, 128836), (1039, 81220), (1310, 64418), (2078, 40610), (2620, 32209), (4061, 20780), (4156, 20305), (5195, 16244), (8122, 10390)]