400996980

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{247529}}^1$

素因数の和:247550

約数の個数: 60

約数和(自身を含む): 1257947460

約数和(自身を除く): 856950480

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 81, 90, 108, 135, 162, 180, 270, 324, 405, 540, 810, 1620, 247529, 495058, 742587, 990116, 1237645, 1485174, 2227761, 2475290, 2970348, 3712935, 4455522, 4950580, 6683283, 7425870, 8911044, 11138805, 13366566, 14851740, 20049849, 22277610, 26733132, 33416415, 40099698, 44555220, 66832830, 80199396, 100249245, 133665660, 200498490, 400996980]

約数ペア:

[(1, 400996980), (2, 200498490), (3, 133665660), (4, 100249245), (5, 80199396), (6, 66832830), (9, 44555220), (10, 40099698), (12, 33416415), (15, 26733132), (18, 22277610), (20, 20049849), (27, 14851740), (30, 13366566), (36, 11138805), (45, 8911044), (54, 7425870), (60, 6683283), (81, 4950580), (90, 4455522), (108, 3712935), (135, 2970348), (162, 2475290), (180, 2227761), (270, 1485174), (324, 1237645), (405, 990116), (540, 742587), (810, 495058), (1620, 247529)]