78904020

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{101159}}^1$

素因数の和:101184

約数の個数: 48

約数和(自身を含む): 237928320

約数和(自身を除く): 159024300

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, 101159, 202318, 303477, 404636, 505795, 606954, 1011590, 1213908, 1315067, 1517385, 2023180, 2630134, 3034770, 3945201, 5260268, 6069540, 6575335, 7890402, 13150670, 15780804, 19726005, 26301340, 39452010, 78904020]

約数ペア:

[(1, 78904020), (2, 39452010), (3, 26301340), (4, 19726005), (5, 15780804), (6, 13150670), (10, 7890402), (12, 6575335), (13, 6069540), (15, 5260268), (20, 3945201), (26, 3034770), (30, 2630134), (39, 2023180), (52, 1517385), (60, 1315067), (65, 1213908), (78, 1011590), (130, 606954), (156, 505795), (195, 404636), (260, 303477), (390, 202318), (780, 101159)]