201988020

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{258959}}^1$

素因数の和:258984

約数の個数: 48

約数和(自身を含む): 609073920

約数和(自身を除く): 407085900

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, 258959, 517918, 776877, 1035836, 1294795, 1553754, 2589590, 3107508, 3366467, 3884385, 5179180, 6732934, 7768770, 10099401, 13465868, 15537540, 16832335, 20198802, 33664670, 40397604, 50497005, 67329340, 100994010, 201988020]

約数ペア:

[(1, 201988020), (2, 100994010), (3, 67329340), (4, 50497005), (5, 40397604), (6, 33664670), (10, 20198802), (12, 16832335), (13, 15537540), (15, 13465868), (20, 10099401), (26, 7768770), (30, 6732934), (39, 5179180), (52, 3884385), (60, 3366467), (65, 3107508), (78, 2589590), (130, 1553754), (156, 1294795), (195, 1035836), (260, 776877), (390, 517918), (780, 258959)]