261261260

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{191}}^1\times {\mathrm{5261}}^1$

素因数の和:5474

約数の個数: 48

約数和(自身を含む): 594058752

約数和(自身を除く): 332797492

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 191, 260, 382, 764, 955, 1910, 2483, 3820, 4966, 5261, 9932, 10522, 12415, 21044, 24830, 26305, 49660, 52610, 68393, 105220, 136786, 273572, 341965, 683930, 1004851, 1367860, 2009702, 4019404, 5024255, 10048510, 13063063, 20097020, 26126126, 52252252, 65315315, 130630630, 261261260]

約数ペア:

[(1, 261261260), (2, 130630630), (4, 65315315), (5, 52252252), (10, 26126126), (13, 20097020), (20, 13063063), (26, 10048510), (52, 5024255), (65, 4019404), (130, 2009702), (191, 1367860), (260, 1004851), (382, 683930), (764, 341965), (955, 273572), (1910, 136786), (2483, 105220), (3820, 68393), (4966, 52610), (5261, 49660), (9932, 26305), (10522, 24830), (12415, 21044)]