19832020

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{919}}^1$

素因数の和:1024

約数の個数: 48

約数和(自身を含む): 45440640

約数和(自身を除く): 25608620

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 83, 130, 166, 260, 332, 415, 830, 919, 1079, 1660, 1838, 2158, 3676, 4316, 4595, 5395, 9190, 10790, 11947, 18380, 21580, 23894, 47788, 59735, 76277, 119470, 152554, 238940, 305108, 381385, 762770, 991601, 1525540, 1983202, 3966404, 4958005, 9916010, 19832020]

約数ペア:

[(1, 19832020), (2, 9916010), (4, 4958005), (5, 3966404), (10, 1983202), (13, 1525540), (20, 991601), (26, 762770), (52, 381385), (65, 305108), (83, 238940), (130, 152554), (166, 119470), (260, 76277), (332, 59735), (415, 47788), (830, 23894), (919, 21580), (1079, 18380), (1660, 11947), (1838, 10790), (2158, 9190), (3676, 5395), (4316, 4595)]