82438980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{105691}}^1$

素因数の和:105716

約数の個数: 48

約数和(自身を含む): 248587584

約数和(自身を除く): 166148604

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 105691, 211382, 317073, 422764, 528455, 634146, 1056910, 1268292, 1373983, 1585365, 2113820, 2747966, 3170730, 4121949, 5495932, 6341460, 6869915, 8243898, 13739830, 16487796, 20609745, 27479660, 41219490, 82438980]

約数ペア:

[(1, 82438980), (2, 41219490), (3, 27479660), (4, 20609745), (5, 16487796), (6, 13739830), (10, 8243898), (12, 6869915), (13, 6341460), (15, 5495932), (20, 4121949), (26, 3170730), (30, 2747966), (39, 2113820), (52, 1585365), (60, 1373983), (65, 1268292), (78, 1056910), (130, 634146), (156, 528455), (195, 422764), (260, 317073), (390, 211382), (780, 105691)]