257277560

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{257}}^1\times {\mathrm{863}}^1$

素因数の和:1160

約数の個数: 64

約数和(自身を含む): 601862400

約数和(自身を除く): 344584840

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 58, 116, 145, 232, 257, 290, 514, 580, 863, 1028, 1160, 1285, 1726, 2056, 2570, 3452, 4315, 5140, 6904, 7453, 8630, 10280, 14906, 17260, 25027, 29812, 34520, 37265, 50054, 59624, 74530, 100108, 125135, 149060, 200216, 221791, 250270, 298120, 443582, 500540, 887164, 1001080, 1108955, 1774328, 2217910, 4435820, 6431939, 8871640, 12863878, 25727756, 32159695, 51455512, 64319390, 128638780, 257277560]

約数ペア:

[(1, 257277560), (2, 128638780), (4, 64319390), (5, 51455512), (8, 32159695), (10, 25727756), (20, 12863878), (29, 8871640), (40, 6431939), (58, 4435820), (116, 2217910), (145, 1774328), (232, 1108955), (257, 1001080), (290, 887164), (514, 500540), (580, 443582), (863, 298120), (1028, 250270), (1160, 221791), (1285, 200216), (1726, 149060), (2056, 125135), (2570, 100108), (3452, 74530), (4315, 59624), (5140, 50054), (6904, 37265), (7453, 34520), (8630, 29812), (10280, 25027), (14906, 17260)]