202959640

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{390307}}^1$

素因数の和:390331

約数の個数: 32

約数和(自身を含む): 491788080

約数和(自身を除く): 288828440

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 390307, 780614, 1561228, 1951535, 3122456, 3903070, 5073991, 7806140, 10147982, 15612280, 20295964, 25369955, 40591928, 50739910, 101479820, 202959640]

約数ペア:

[(1, 202959640), (2, 101479820), (4, 50739910), (5, 40591928), (8, 25369955), (10, 20295964), (13, 15612280), (20, 10147982), (26, 7806140), (40, 5073991), (52, 3903070), (65, 3122456), (104, 1951535), (130, 1561228), (260, 780614), (520, 390307)]