81998670

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{167}}^1\times {\mathrm{1259}}^1$

素因数の和:1449

約数の個数: 64

約数和(自身を含む): 213373440

約数和(自身を除く): 131374770

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 167, 195, 334, 390, 501, 835, 1002, 1259, 1670, 2171, 2505, 2518, 3777, 4342, 5010, 6295, 6513, 7554, 10855, 12590, 13026, 16367, 18885, 21710, 32565, 32734, 37770, 49101, 65130, 81835, 98202, 163670, 210253, 245505, 420506, 491010, 630759, 1051265, 1261518, 2102530, 2733289, 3153795, 5466578, 6307590, 8199867, 13666445, 16399734, 27332890, 40999335, 81998670]

約数ペア:

[(1, 81998670), (2, 40999335), (3, 27332890), (5, 16399734), (6, 13666445), (10, 8199867), (13, 6307590), (15, 5466578), (26, 3153795), (30, 2733289), (39, 2102530), (65, 1261518), (78, 1051265), (130, 630759), (167, 491010), (195, 420506), (334, 245505), (390, 210253), (501, 163670), (835, 98202), (1002, 81835), (1259, 65130), (1670, 49101), (2171, 37770), (2505, 32734), (2518, 32565), (3777, 21710), (4342, 18885), (5010, 16367), (6295, 13026), (6513, 12590), (7554, 10855)]