228740720

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{219943}}^1$

素因数の和:219969

約数の個数: 40

約数和(自身を含む): 572734176

約数和(自身を除く): 343993456

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 219943, 439886, 879772, 1099715, 1759544, 2199430, 2859259, 3519088, 4398860, 5718518, 8797720, 11437036, 14296295, 17595440, 22874072, 28592590, 45748144, 57185180, 114370360, 228740720]

約数ペア:

[(1, 228740720), (2, 114370360), (4, 57185180), (5, 45748144), (8, 28592590), (10, 22874072), (13, 17595440), (16, 14296295), (20, 11437036), (26, 8797720), (40, 5718518), (52, 4398860), (65, 3519088), (80, 2859259), (104, 2199430), (130, 1759544), (208, 1099715), (260, 879772), (520, 439886), (1040, 219943)]