121005880

素因数分解:

$2^3\times 5^1\times {\mathrm{79}}^1\times {\mathrm{149}}^1\times {\mathrm{257}}^1$

素因数の和:496

約数の個数: 64

約数和(自身を含む): 278640000

約数和(自身を除く): 157634120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 79, 149, 158, 257, 298, 316, 395, 514, 596, 632, 745, 790, 1028, 1192, 1285, 1490, 1580, 2056, 2570, 2980, 3160, 5140, 5960, 10280, 11771, 20303, 23542, 38293, 40606, 47084, 58855, 76586, 81212, 94168, 101515, 117710, 153172, 162424, 191465, 203030, 235420, 306344, 382930, 406060, 470840, 765860, 812120, 1531720, 3025147, 6050294, 12100588, 15125735, 24201176, 30251470, 60502940, 121005880]

約数ペア:

[(1, 121005880), (2, 60502940), (4, 30251470), (5, 24201176), (8, 15125735), (10, 12100588), (20, 6050294), (40, 3025147), (79, 1531720), (149, 812120), (158, 765860), (257, 470840), (298, 406060), (316, 382930), (395, 306344), (514, 235420), (596, 203030), (632, 191465), (745, 162424), (790, 153172), (1028, 117710), (1192, 101515), (1285, 94168), (1490, 81212), (1580, 76586), (2056, 58855), (2570, 47084), (2980, 40606), (3160, 38293), (5140, 23542), (5960, 20303), (10280, 11771)]