1878991010

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{331}}^1\times {\mathrm{3359}}^1$

素因数の和:3723

約数の個数: 48

約数和(自身を含む): 3674522880

約数和(自身を除く): 1795531870

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 169, 331, 338, 662, 845, 1655, 1690, 3310, 3359, 4303, 6718, 8606, 16795, 21515, 33590, 43030, 43667, 55939, 87334, 111878, 218335, 279695, 436670, 559390, 567671, 1111829, 1135342, 2223658, 2838355, 5559145, 5676710, 11118290, 14453777, 28907554, 72268885, 144537770, 187899101, 375798202, 939495505, 1878991010]

約数ペア:

[(1, 1878991010), (2, 939495505), (5, 375798202), (10, 187899101), (13, 144537770), (26, 72268885), (65, 28907554), (130, 14453777), (169, 11118290), (331, 5676710), (338, 5559145), (662, 2838355), (845, 2223658), (1655, 1135342), (1690, 1111829), (3310, 567671), (3359, 559390), (4303, 436670), (6718, 279695), (8606, 218335), (16795, 111878), (21515, 87334), (33590, 55939), (43030, 43667)]