19492180

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{149}}^1\times {\mathrm{211}}^1$

素因数の和:400

約数の個数: 48

約数和(自身を含む): 42739200

約数和(自身を除く): 23247020

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 149, 155, 211, 298, 310, 422, 596, 620, 745, 844, 1055, 1490, 2110, 2980, 4220, 4619, 6541, 9238, 13082, 18476, 23095, 26164, 31439, 32705, 46190, 62878, 65410, 92380, 125756, 130820, 157195, 314390, 628780, 974609, 1949218, 3898436, 4873045, 9746090, 19492180]

約数ペア:

[(1, 19492180), (2, 9746090), (4, 4873045), (5, 3898436), (10, 1949218), (20, 974609), (31, 628780), (62, 314390), (124, 157195), (149, 130820), (155, 125756), (211, 92380), (298, 65410), (310, 62878), (422, 46190), (596, 32705), (620, 31439), (745, 26164), (844, 23095), (1055, 18476), (1490, 13082), (2110, 9238), (2980, 6541), (4220, 4619)]