19665690

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{2591}}^1$

素因数の和:2635

約数の個数: 64

約数和(自身を含む): 53747712

約数和(自身を除く): 34082022

約数列:

[1, 2, 3, 5, 6, 10, 11, 15, 22, 23, 30, 33, 46, 55, 66, 69, 110, 115, 138, 165, 230, 253, 330, 345, 506, 690, 759, 1265, 1518, 2530, 2591, 3795, 5182, 7590, 7773, 12955, 15546, 25910, 28501, 38865, 57002, 59593, 77730, 85503, 119186, 142505, 171006, 178779, 285010, 297965, 357558, 427515, 595930, 655523, 855030, 893895, 1311046, 1787790, 1966569, 3277615, 3933138, 6555230, 9832845, 19665690]

約数ペア:

[(1, 19665690), (2, 9832845), (3, 6555230), (5, 3933138), (6, 3277615), (10, 1966569), (11, 1787790), (15, 1311046), (22, 893895), (23, 855030), (30, 655523), (33, 595930), (46, 427515), (55, 357558), (66, 297965), (69, 285010), (110, 178779), (115, 171006), (138, 142505), (165, 119186), (230, 85503), (253, 77730), (330, 59593), (345, 57002), (506, 38865), (690, 28501), (759, 25910), (1265, 15546), (1518, 12955), (2530, 7773), (2591, 7590), (3795, 5182)]