20374000

素因数分解:

$2^4\times 5^3\times {\mathrm{61}}^1\times {\mathrm{167}}^1$

素因数の和:251

約数の個数: 80

約数和(自身を含む): 50371776

約数和(自身を除く): 29997776

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 61, 80, 100, 122, 125, 167, 200, 244, 250, 305, 334, 400, 488, 500, 610, 668, 835, 976, 1000, 1220, 1336, 1525, 1670, 2000, 2440, 2672, 3050, 3340, 4175, 4880, 6100, 6680, 7625, 8350, 10187, 12200, 13360, 15250, 16700, 20374, 20875, 24400, 30500, 33400, 40748, 41750, 50935, 61000, 66800, 81496, 83500, 101870, 122000, 162992, 167000, 203740, 254675, 334000, 407480, 509350, 814960, 1018700, 1273375, 2037400, 2546750, 4074800, 5093500, 10187000, 20374000]

約数ペア:

[(1, 20374000), (2, 10187000), (4, 5093500), (5, 4074800), (8, 2546750), (10, 2037400), (16, 1273375), (20, 1018700), (25, 814960), (40, 509350), (50, 407480), (61, 334000), (80, 254675), (100, 203740), (122, 167000), (125, 162992), (167, 122000), (200, 101870), (244, 83500), (250, 81496), (305, 66800), (334, 61000), (400, 50935), (488, 41750), (500, 40748), (610, 33400), (668, 30500), (835, 24400), (976, 20875), (1000, 20374), (1220, 16700), (1336, 15250), (1525, 13360), (1670, 12200), (2000, 10187), (2440, 8350), (2672, 7625), (3050, 6680), (3340, 6100), (4175, 4880)]