289595560

素因数分解:

$2^3\times 5^1\times {\mathrm{109}}^1\times {\mathrm{127}}^1\times {\mathrm{523}}^1$

素因数の和:770

約数の個数: 64

約数和(自身を含む): 664012800

約数和(自身を除く): 374417240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 109, 127, 218, 254, 436, 508, 523, 545, 635, 872, 1016, 1046, 1090, 1270, 2092, 2180, 2540, 2615, 4184, 4360, 5080, 5230, 10460, 13843, 20920, 27686, 55372, 57007, 66421, 69215, 110744, 114014, 132842, 138430, 228028, 265684, 276860, 285035, 332105, 456056, 531368, 553720, 570070, 664210, 1140140, 1328420, 2280280, 2656840, 7239889, 14479778, 28959556, 36199445, 57919112, 72398890, 144797780, 289595560]

約数ペア:

[(1, 289595560), (2, 144797780), (4, 72398890), (5, 57919112), (8, 36199445), (10, 28959556), (20, 14479778), (40, 7239889), (109, 2656840), (127, 2280280), (218, 1328420), (254, 1140140), (436, 664210), (508, 570070), (523, 553720), (545, 531368), (635, 456056), (872, 332105), (1016, 285035), (1046, 276860), (1090, 265684), (1270, 228028), (2092, 138430), (2180, 132842), (2540, 114014), (2615, 110744), (4184, 69215), (4360, 66421), (5080, 57007), (5230, 55372), (10460, 27686), (13843, 20920)]