20015710

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{13997}}^1$

素因数の和:14028

約数の個数: 32

約数和(自身を含む): 42329952

約数和(自身を除く): 22314242

約数列:

[1, 2, 5, 10, 11, 13, 22, 26, 55, 65, 110, 130, 143, 286, 715, 1430, 13997, 27994, 69985, 139970, 153967, 181961, 307934, 363922, 769835, 909805, 1539670, 1819610, 2001571, 4003142, 10007855, 20015710]

約数ペア:

[(1, 20015710), (2, 10007855), (5, 4003142), (10, 2001571), (11, 1819610), (13, 1539670), (22, 909805), (26, 769835), (55, 363922), (65, 307934), (110, 181961), (130, 153967), (143, 139970), (286, 69985), (715, 27994), (1430, 13997)]