78538790

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{839}}^1$

素因数の和:917

約数の個数: 64

約数和(自身を含む): 165473280

約数和(自身を除く): 86934490

約数列:

[1, 2, 5, 10, 11, 22, 23, 37, 46, 55, 74, 110, 115, 185, 230, 253, 370, 407, 506, 814, 839, 851, 1265, 1678, 1702, 2035, 2530, 4070, 4195, 4255, 8390, 8510, 9229, 9361, 18458, 18722, 19297, 31043, 38594, 46145, 46805, 62086, 92290, 93610, 96485, 155215, 192970, 212267, 310430, 341473, 424534, 682946, 713989, 1061335, 1427978, 1707365, 2122670, 3414730, 3569945, 7139890, 7853879, 15707758, 39269395, 78538790]

約数ペア:

[(1, 78538790), (2, 39269395), (5, 15707758), (10, 7853879), (11, 7139890), (22, 3569945), (23, 3414730), (37, 2122670), (46, 1707365), (55, 1427978), (74, 1061335), (110, 713989), (115, 682946), (185, 424534), (230, 341473), (253, 310430), (370, 212267), (407, 192970), (506, 155215), (814, 96485), (839, 93610), (851, 92290), (1265, 62086), (1678, 46805), (1702, 46145), (2035, 38594), (2530, 31043), (4070, 19297), (4195, 18722), (4255, 18458), (8390, 9361), (8510, 9229)]