80995100

素因数分解:

$2^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{907}}^1$

素因数の和:987

約数の個数: 72

約数和(自身を含む): 189154560

約数和(自身を除く): 108159460

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 38, 47, 50, 76, 94, 95, 100, 188, 190, 235, 380, 470, 475, 893, 907, 940, 950, 1175, 1786, 1814, 1900, 2350, 3572, 3628, 4465, 4535, 4700, 8930, 9070, 17233, 17860, 18140, 22325, 22675, 34466, 42629, 44650, 45350, 68932, 85258, 86165, 89300, 90700, 170516, 172330, 213145, 344660, 426290, 430825, 809951, 852580, 861650, 1065725, 1619902, 1723300, 2131450, 3239804, 4049755, 4262900, 8099510, 16199020, 20248775, 40497550, 80995100]

約数ペア:

[(1, 80995100), (2, 40497550), (4, 20248775), (5, 16199020), (10, 8099510), (19, 4262900), (20, 4049755), (25, 3239804), (38, 2131450), (47, 1723300), (50, 1619902), (76, 1065725), (94, 861650), (95, 852580), (100, 809951), (188, 430825), (190, 426290), (235, 344660), (380, 213145), (470, 172330), (475, 170516), (893, 90700), (907, 89300), (940, 86165), (950, 85258), (1175, 68932), (1786, 45350), (1814, 44650), (1900, 42629), (2350, 34466), (3572, 22675), (3628, 22325), (4465, 18140), (4535, 17860), (4700, 17233), (8930, 9070)]