291228880

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{117431}}^1$

素因数の和:117475

約数の個数: 40

約数和(自身を含む): 698955264

約数和(自身を除く): 407726384

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 117431, 234862, 469724, 587155, 939448, 1174310, 1878896, 2348620, 3640361, 4697240, 7280722, 9394480, 14561444, 18201805, 29122888, 36403610, 58245776, 72807220, 145614440, 291228880]

約数ペア:

[(1, 291228880), (2, 145614440), (4, 72807220), (5, 58245776), (8, 36403610), (10, 29122888), (16, 18201805), (20, 14561444), (31, 9394480), (40, 7280722), (62, 4697240), (80, 3640361), (124, 2348620), (155, 1878896), (248, 1174310), (310, 939448), (496, 587155), (620, 469724), (1240, 234862), (2480, 117431)]