19545760

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{9397}}^1$

素因数の和:9425

約数の個数: 48

約数和(自身を含む): 49734216

約数和(自身を除く): 30188456

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 65, 80, 104, 130, 160, 208, 260, 416, 520, 1040, 2080, 9397, 18794, 37588, 46985, 75176, 93970, 122161, 150352, 187940, 244322, 300704, 375880, 488644, 610805, 751760, 977288, 1221610, 1503520, 1954576, 2443220, 3909152, 4886440, 9772880, 19545760]

約数ペア:

[(1, 19545760), (2, 9772880), (4, 4886440), (5, 3909152), (8, 2443220), (10, 1954576), (13, 1503520), (16, 1221610), (20, 977288), (26, 751760), (32, 610805), (40, 488644), (52, 375880), (65, 300704), (80, 244322), (104, 187940), (130, 150352), (160, 122161), (208, 93970), (260, 75176), (416, 46985), (520, 37588), (1040, 18794), (2080, 9397)]