40807745960

素因数分解:

$2^3\times 5^1\times {\mathrm{181}}^1\times {\mathrm{409}}^1\times {\mathrm{13781}}^1$

素因数の和:14382

約数の個数: 64

約数和(自身を含む): 92557155600

約数和(自身を除く): 51749409640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 181, 362, 409, 724, 818, 905, 1448, 1636, 1810, 2045, 3272, 3620, 4090, 7240, 8180, 13781, 16360, 27562, 55124, 68905, 74029, 110248, 137810, 148058, 275620, 296116, 370145, 551240, 592232, 740290, 1480580, 2494361, 2961160, 4988722, 5636429, 9977444, 11272858, 12471805, 19954888, 22545716, 24943610, 28182145, 45091432, 49887220, 56364290, 99774440, 112728580, 225457160, 1020193649, 2040387298, 4080774596, 5100968245, 8161549192, 10201936490, 20403872980, 40807745960]

約数ペア:

[(1, 40807745960), (2, 20403872980), (4, 10201936490), (5, 8161549192), (8, 5100968245), (10, 4080774596), (20, 2040387298), (40, 1020193649), (181, 225457160), (362, 112728580), (409, 99774440), (724, 56364290), (818, 49887220), (905, 45091432), (1448, 28182145), (1636, 24943610), (1810, 22545716), (2045, 19954888), (3272, 12471805), (3620, 11272858), (4090, 9977444), (7240, 5636429), (8180, 4988722), (13781, 2961160), (16360, 2494361), (27562, 1480580), (55124, 740290), (68905, 592232), (74029, 551240), (110248, 370145), (137810, 296116), (148058, 275620)]