19456120

素因数分解:

$2^3\times 5^1\times {\mathrm{47}}^1\times {\mathrm{79}}^1\times {\mathrm{131}}^1$

素因数の和:268

約数の個数: 64

約数和(自身を含む): 45619200

約数和(自身を除く): 26163080

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 47, 79, 94, 131, 158, 188, 235, 262, 316, 376, 395, 470, 524, 632, 655, 790, 940, 1048, 1310, 1580, 1880, 2620, 3160, 3713, 5240, 6157, 7426, 10349, 12314, 14852, 18565, 20698, 24628, 29704, 30785, 37130, 41396, 49256, 51745, 61570, 74260, 82792, 103490, 123140, 148520, 206980, 246280, 413960, 486403, 972806, 1945612, 2432015, 3891224, 4864030, 9728060, 19456120]

約数ペア:

[(1, 19456120), (2, 9728060), (4, 4864030), (5, 3891224), (8, 2432015), (10, 1945612), (20, 972806), (40, 486403), (47, 413960), (79, 246280), (94, 206980), (131, 148520), (158, 123140), (188, 103490), (235, 82792), (262, 74260), (316, 61570), (376, 51745), (395, 49256), (470, 41396), (524, 37130), (632, 30785), (655, 29704), (790, 24628), (940, 20698), (1048, 18565), (1310, 14852), (1580, 12314), (1880, 10349), (2620, 7426), (3160, 6157), (3713, 5240)]