678856660

素因数分解:

$2^2\times 5^1\times {\mathrm{199}}^1\times {\mathrm{281}}^1\times {\mathrm{607}}^1$

素因数の和:1096

約数の個数: 48

約数和(自身を含む): 1440230400

約数和(自身を除く): 761373740

約数列:

[1, 2, 4, 5, 10, 20, 199, 281, 398, 562, 607, 796, 995, 1124, 1214, 1405, 1990, 2428, 2810, 3035, 3980, 5620, 6070, 12140, 55919, 111838, 120793, 170567, 223676, 241586, 279595, 341134, 483172, 559190, 603965, 682268, 852835, 1118380, 1207930, 1705670, 2415860, 3411340, 33942833, 67885666, 135771332, 169714165, 339428330, 678856660]

約数ペア:

[(1, 678856660), (2, 339428330), (4, 169714165), (5, 135771332), (10, 67885666), (20, 33942833), (199, 3411340), (281, 2415860), (398, 1705670), (562, 1207930), (607, 1118380), (796, 852835), (995, 682268), (1124, 603965), (1214, 559190), (1405, 483172), (1990, 341134), (2428, 279595), (2810, 241586), (3035, 223676), (3980, 170567), (5620, 120793), (6070, 111838), (12140, 55919)]