81187860

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{104087}}^1$

素因数の和:104112

約数の個数: 48

約数和(自身を含む): 244814976

約数和(自身を除く): 163627116

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, 104087, 208174, 312261, 416348, 520435, 624522, 1040870, 1249044, 1353131, 1561305, 2081740, 2706262, 3122610, 4059393, 5412524, 6245220, 6765655, 8118786, 13531310, 16237572, 20296965, 27062620, 40593930, 81187860]

約数ペア:

[(1, 81187860), (2, 40593930), (3, 27062620), (4, 20296965), (5, 16237572), (6, 13531310), (10, 8118786), (12, 6765655), (13, 6245220), (15, 5412524), (20, 4059393), (26, 3122610), (30, 2706262), (39, 2081740), (52, 1561305), (60, 1353131), (65, 1249044), (78, 1040870), (130, 624522), (156, 520435), (195, 416348), (260, 312261), (390, 208174), (780, 104087)]