284339240

素因数分解:

$2^3\times 5^1\times {\mathrm{101}}^1\times {\mathrm{70381}}^1$

素因数の和:70493

約数の個数: 32

約数和(自身を含む): 646106760

約数和(自身を除く): 361767520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 101, 202, 404, 505, 808, 1010, 2020, 4040, 70381, 140762, 281524, 351905, 563048, 703810, 1407620, 2815240, 7108481, 14216962, 28433924, 35542405, 56867848, 71084810, 142169620, 284339240]

約数ペア:

[(1, 284339240), (2, 142169620), (4, 71084810), (5, 56867848), (8, 35542405), (10, 28433924), (20, 14216962), (40, 7108481), (101, 2815240), (202, 1407620), (404, 703810), (505, 563048), (808, 351905), (1010, 281524), (2020, 140762), (4040, 70381)]