1225999780

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{269}}^1\times {\mathrm{7351}}^1$

素因数の和:7660

約数の個数: 48

約数和(自身を含む): 2667893760

約数和(自身を除く): 1441893980

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 269, 310, 538, 620, 1076, 1345, 2690, 5380, 7351, 8339, 14702, 16678, 29404, 33356, 36755, 41695, 73510, 83390, 147020, 166780, 227881, 455762, 911524, 1139405, 1977419, 2278810, 3954838, 4557620, 7909676, 9887095, 19774190, 39548380, 61299989, 122599978, 245199956, 306499945, 612999890, 1225999780]

約数ペア:

[(1, 1225999780), (2, 612999890), (4, 306499945), (5, 245199956), (10, 122599978), (20, 61299989), (31, 39548380), (62, 19774190), (124, 9887095), (155, 7909676), (269, 4557620), (310, 3954838), (538, 2278810), (620, 1977419), (1076, 1139405), (1345, 911524), (2690, 455762), (5380, 227881), (7351, 166780), (8339, 147020), (14702, 83390), (16678, 73510), (29404, 41695), (33356, 36755)]