81703920

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{277}}^1\times {\mathrm{1229}}^1$

素因数の和:1522

約数の個数: 80

約数和(自身を含む): 254403360

約数和(自身を除く): 172699440

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 277, 554, 831, 1108, 1229, 1385, 1662, 2216, 2458, 2770, 3324, 3687, 4155, 4432, 4916, 5540, 6145, 6648, 7374, 8310, 9832, 11080, 12290, 13296, 14748, 16620, 18435, 19664, 22160, 24580, 29496, 33240, 36870, 49160, 58992, 66480, 73740, 98320, 147480, 294960, 340433, 680866, 1021299, 1361732, 1702165, 2042598, 2723464, 3404330, 4085196, 5106495, 5446928, 6808660, 8170392, 10212990, 13617320, 16340784, 20425980, 27234640, 40851960, 81703920]

約数ペア:

[(1, 81703920), (2, 40851960), (3, 27234640), (4, 20425980), (5, 16340784), (6, 13617320), (8, 10212990), (10, 8170392), (12, 6808660), (15, 5446928), (16, 5106495), (20, 4085196), (24, 3404330), (30, 2723464), (40, 2042598), (48, 1702165), (60, 1361732), (80, 1021299), (120, 680866), (240, 340433), (277, 294960), (554, 147480), (831, 98320), (1108, 73740), (1229, 66480), (1385, 58992), (1662, 49160), (2216, 36870), (2458, 33240), (2770, 29496), (3324, 24580), (3687, 22160), (4155, 19664), (4432, 18435), (4916, 16620), (5540, 14748), (6145, 13296), (6648, 12290), (7374, 11080), (8310, 9832)]