15678720140

素因数分解:

$2^2\times 5^1\times {\mathrm{191}}^1\times {\mathrm{977}}^1\times {\mathrm{4201}}^1$

素因数の和:5378

約数の個数: 48

約数和(自身を含む): 33139459584

約数和(自身を除く): 17460739444

約数列:

[1, 2, 4, 5, 10, 20, 191, 382, 764, 955, 977, 1910, 1954, 3820, 3908, 4201, 4885, 8402, 9770, 16804, 19540, 21005, 42010, 84020, 186607, 373214, 746428, 802391, 933035, 1604782, 1866070, 3209564, 3732140, 4011955, 4104377, 8023910, 8208754, 16047820, 16417508, 20521885, 41043770, 82087540, 783936007, 1567872014, 3135744028, 3919680035, 7839360070, 15678720140]

約数ペア:

[(1, 15678720140), (2, 7839360070), (4, 3919680035), (5, 3135744028), (10, 1567872014), (20, 783936007), (191, 82087540), (382, 41043770), (764, 20521885), (955, 16417508), (977, 16047820), (1910, 8208754), (1954, 8023910), (3820, 4104377), (3908, 4011955), (4201, 3732140), (4885, 3209564), (8402, 1866070), (9770, 1604782), (16804, 933035), (19540, 802391), (21005, 746428), (42010, 373214), (84020, 186607)]