19380668080

素因数分解:

$2^4\times 5^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{139309}}^1$

素因数の和:139406

約数の個数: 80

約数和(自身を含む): 47262867840

約数和(自身を除く): 27882199760

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 37, 40, 47, 74, 80, 94, 148, 185, 188, 235, 296, 370, 376, 470, 592, 740, 752, 940, 1480, 1739, 1880, 2960, 3478, 3760, 6956, 8695, 13912, 17390, 27824, 34780, 69560, 139120, 139309, 278618, 557236, 696545, 1114472, 1393090, 2228944, 2786180, 5154433, 5572360, 6547523, 10308866, 11144720, 13095046, 20617732, 25772165, 26190092, 32737615, 41235464, 51544330, 52380184, 65475230, 82470928, 103088660, 104760368, 130950460, 206177320, 242258351, 261900920, 412354640, 484516702, 523801840, 969033404, 1211291755, 1938066808, 2422583510, 3876133616, 4845167020, 9690334040, 19380668080]

約数ペア:

[(1, 19380668080), (2, 9690334040), (4, 4845167020), (5, 3876133616), (8, 2422583510), (10, 1938066808), (16, 1211291755), (20, 969033404), (37, 523801840), (40, 484516702), (47, 412354640), (74, 261900920), (80, 242258351), (94, 206177320), (148, 130950460), (185, 104760368), (188, 103088660), (235, 82470928), (296, 65475230), (370, 52380184), (376, 51544330), (470, 41235464), (592, 32737615), (740, 26190092), (752, 25772165), (940, 20617732), (1480, 13095046), (1739, 11144720), (1880, 10308866), (2960, 6547523), (3478, 5572360), (3760, 5154433), (6956, 2786180), (8695, 2228944), (13912, 1393090), (17390, 1114472), (27824, 696545), (34780, 557236), (69560, 278618), (139120, 139309)]