18877980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{28603}}^1$

素因数の和:28626

約数の個数: 48

約数和(自身を含む): 57665664

約数和(自身を除く): 38787684

約数列:

[1, 2, 3, 4, 5, 6, 10, 11, 12, 15, 20, 22, 30, 33, 44, 55, 60, 66, 110, 132, 165, 220, 330, 660, 28603, 57206, 85809, 114412, 143015, 171618, 286030, 314633, 343236, 429045, 572060, 629266, 858090, 943899, 1258532, 1573165, 1716180, 1887798, 3146330, 3775596, 4719495, 6292660, 9438990, 18877980]

約数ペア:

[(1, 18877980), (2, 9438990), (3, 6292660), (4, 4719495), (5, 3775596), (6, 3146330), (10, 1887798), (11, 1716180), (12, 1573165), (15, 1258532), (20, 943899), (22, 858090), (30, 629266), (33, 572060), (44, 429045), (55, 343236), (60, 314633), (66, 286030), (110, 171618), (132, 143015), (165, 114412), (220, 85809), (330, 57206), (660, 28603)]