1999163920

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1922273}}^1$

素因数の和:1922299

約数の個数: 40

約数和(自身を含む): 5005601496

約数和(自身を除く): 3006437576

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 1922273, 3844546, 7689092, 9611365, 15378184, 19222730, 24989549, 30756368, 38445460, 49979098, 76890920, 99958196, 124947745, 153781840, 199916392, 249895490, 399832784, 499790980, 999581960, 1999163920]

約数ペア:

[(1, 1999163920), (2, 999581960), (4, 499790980), (5, 399832784), (8, 249895490), (10, 199916392), (13, 153781840), (16, 124947745), (20, 99958196), (26, 76890920), (40, 49979098), (52, 38445460), (65, 30756368), (80, 24989549), (104, 19222730), (130, 15378184), (208, 9611365), (260, 7689092), (520, 3844546), (1040, 1922273)]