866931620

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{421}}^1\times {\mathrm{5419}}^1$

素因数の和:5868

約数の個数: 48

約数和(自身を含む): 1921281600

約数和(自身を除く): 1054349980

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 421, 842, 1684, 2105, 4210, 5419, 7999, 8420, 10838, 15998, 21676, 27095, 31996, 39995, 54190, 79990, 102961, 108380, 159980, 205922, 411844, 514805, 1029610, 2059220, 2281399, 4562798, 9125596, 11406995, 22813990, 43346581, 45627980, 86693162, 173386324, 216732905, 433465810, 866931620]

約数ペア:

[(1, 866931620), (2, 433465810), (4, 216732905), (5, 173386324), (10, 86693162), (19, 45627980), (20, 43346581), (38, 22813990), (76, 11406995), (95, 9125596), (190, 4562798), (380, 2281399), (421, 2059220), (842, 1029610), (1684, 514805), (2105, 411844), (4210, 205922), (5419, 159980), (7999, 108380), (8420, 102961), (10838, 79990), (15998, 54190), (21676, 39995), (27095, 31996)]