20434390

素因数分解:

$2^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{139}}^1\times {\mathrm{241}}^1$

素因数の和:448

約数の個数: 32

約数和(自身を含む): 37810080

約数和(自身を除く): 17375690

約数列:

[1, 2, 5, 10, 61, 122, 139, 241, 278, 305, 482, 610, 695, 1205, 1390, 2410, 8479, 14701, 16958, 29402, 33499, 42395, 66998, 73505, 84790, 147010, 167495, 334990, 2043439, 4086878, 10217195, 20434390]

約数ペア:

[(1, 20434390), (2, 10217195), (5, 4086878), (10, 2043439), (61, 334990), (122, 167495), (139, 147010), (241, 84790), (278, 73505), (305, 66998), (482, 42395), (610, 33499), (695, 29402), (1205, 16958), (1390, 14701), (2410, 8479)]