255226240

素因数分解:

$2^7\times 5^1\times {\mathrm{19}}^1\times {\mathrm{139}}^1\times {\mathrm{151}}^1$

素因数の和:328

約数の個数: 128

約数和(自身を含む): 651168000

約数和(自身を除く): 395941760

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 64, 76, 80, 95, 128, 139, 151, 152, 160, 190, 278, 302, 304, 320, 380, 556, 604, 608, 640, 695, 755, 760, 1112, 1208, 1216, 1390, 1510, 1520, 2224, 2416, 2432, 2641, 2780, 2869, 3020, 3040, 4448, 4832, 5282, 5560, 5738, 6040, 6080, 8896, 9664, 10564, 11120, 11476, 12080, 12160, 13205, 14345, 17792, 19328, 20989, 21128, 22240, 22952, 24160, 26410, 28690, 41978, 42256, 44480, 45904, 48320, 52820, 57380, 83956, 84512, 88960, 91808, 96640, 104945, 105640, 114760, 167912, 169024, 183616, 209890, 211280, 229520, 335824, 338048, 367232, 398791, 419780, 422560, 459040, 671648, 797582, 839560, 845120, 918080, 1343296, 1595164, 1679120, 1690240, 1836160, 1993955, 2686592, 3190328, 3358240, 3987910, 6380656, 6716480, 7975820, 12761312, 13432960, 15951640, 25522624, 31903280, 51045248, 63806560, 127613120, 255226240]

約数ペア:

[(1, 255226240), (2, 127613120), (4, 63806560), (5, 51045248), (8, 31903280), (10, 25522624), (16, 15951640), (19, 13432960), (20, 12761312), (32, 7975820), (38, 6716480), (40, 6380656), (64, 3987910), (76, 3358240), (80, 3190328), (95, 2686592), (128, 1993955), (139, 1836160), (151, 1690240), (152, 1679120), (160, 1595164), (190, 1343296), (278, 918080), (302, 845120), (304, 839560), (320, 797582), (380, 671648), (556, 459040), (604, 422560), (608, 419780), (640, 398791), (695, 367232), (755, 338048), (760, 335824), (1112, 229520), (1208, 211280), (1216, 209890), (1390, 183616), (1510, 169024), (1520, 167912), (2224, 114760), (2416, 105640), (2432, 104945), (2641, 96640), (2780, 91808), (2869, 88960), (3020, 84512), (3040, 83956), (4448, 57380), (4832, 52820), (5282, 48320), (5560, 45904), (5738, 44480), (6040, 42256), (6080, 41978), (8896, 28690), (9664, 26410), (10564, 24160), (11120, 22952), (11476, 22240), (12080, 21128), (12160, 20989), (13205, 19328), (14345, 17792)]