397232240

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{261337}}^1$

素因数の和:261369

約数の個数: 40

約数和(自身を含む): 972177360

約数和(自身を除く): 574945120

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 261337, 522674, 1045348, 1306685, 2090696, 2613370, 4181392, 4965403, 5226740, 9930806, 10453480, 19861612, 20906960, 24827015, 39723224, 49654030, 79446448, 99308060, 198616120, 397232240]

約数ペア:

[(1, 397232240), (2, 198616120), (4, 99308060), (5, 79446448), (8, 49654030), (10, 39723224), (16, 24827015), (19, 20906960), (20, 19861612), (38, 10453480), (40, 9930806), (76, 5226740), (80, 4965403), (95, 4181392), (152, 2613370), (190, 2090696), (304, 1306685), (380, 1045348), (760, 522674), (1520, 261337)]