123520020

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{158359}}^1$

素因数の和:158384

約数の個数: 48

約数和(自身を含む): 372462720

約数和(自身を除く): 248942700

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, 158359, 316718, 475077, 633436, 791795, 950154, 1583590, 1900308, 2058667, 2375385, 3167180, 4117334, 4750770, 6176001, 8234668, 9501540, 10293335, 12352002, 20586670, 24704004, 30880005, 41173340, 61760010, 123520020]

約数ペア:

[(1, 123520020), (2, 61760010), (3, 41173340), (4, 30880005), (5, 24704004), (6, 20586670), (10, 12352002), (12, 10293335), (13, 9501540), (15, 8234668), (20, 6176001), (26, 4750770), (30, 4117334), (39, 3167180), (52, 2375385), (60, 2058667), (65, 1900308), (78, 1583590), (130, 950154), (156, 791795), (195, 633436), (260, 475077), (390, 316718), (780, 158359)]