396804940

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{157}}^1\times {\mathrm{2579}}^1$

素因数の和:2759

約数の個数: 72

約数和(自身を含む): 975890160

約数和(自身を除く): 579085220

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 157, 196, 245, 314, 490, 628, 785, 980, 1099, 1570, 2198, 2579, 3140, 4396, 5158, 5495, 7693, 10316, 10990, 12895, 15386, 18053, 21980, 25790, 30772, 36106, 38465, 51580, 72212, 76930, 90265, 126371, 153860, 180530, 252742, 361060, 404903, 505484, 631855, 809806, 1263710, 1619612, 2024515, 2527420, 2834321, 4049030, 5668642, 8098060, 11337284, 14171605, 19840247, 28343210, 39680494, 56686420, 79360988, 99201235, 198402470, 396804940]

約数ペア:

[(1, 396804940), (2, 198402470), (4, 99201235), (5, 79360988), (7, 56686420), (10, 39680494), (14, 28343210), (20, 19840247), (28, 14171605), (35, 11337284), (49, 8098060), (70, 5668642), (98, 4049030), (140, 2834321), (157, 2527420), (196, 2024515), (245, 1619612), (314, 1263710), (490, 809806), (628, 631855), (785, 505484), (980, 404903), (1099, 361060), (1570, 252742), (2198, 180530), (2579, 153860), (3140, 126371), (4396, 90265), (5158, 76930), (5495, 72212), (7693, 51580), (10316, 38465), (10990, 36106), (12895, 30772), (15386, 25790), (18053, 21980)]