309767620

素因数分解:

$2^2\times 5^1\times {\mathrm{83}}^1\times {\mathrm{191}}^1\times {\mathrm{977}}^1$

素因数の和:1260

約数の個数: 48

約数和(自身を含む): 662473728

約数和(自身を除く): 352706108

約数列:

[1, 2, 4, 5, 10, 20, 83, 166, 191, 332, 382, 415, 764, 830, 955, 977, 1660, 1910, 1954, 3820, 3908, 4885, 9770, 15853, 19540, 31706, 63412, 79265, 81091, 158530, 162182, 186607, 317060, 324364, 373214, 405455, 746428, 810910, 933035, 1621820, 1866070, 3732140, 15488381, 30976762, 61953524, 77441905, 154883810, 309767620]

約数ペア:

[(1, 309767620), (2, 154883810), (4, 77441905), (5, 61953524), (10, 30976762), (20, 15488381), (83, 3732140), (166, 1866070), (191, 1621820), (332, 933035), (382, 810910), (415, 746428), (764, 405455), (830, 373214), (955, 324364), (977, 317060), (1660, 186607), (1910, 162182), (1954, 158530), (3820, 81091), (3908, 79265), (4885, 63412), (9770, 31706), (15853, 19540)]