81654240

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{67}}^1\times {\mathrm{2539}}^1$

素因数の和:2624

約数の個数: 96

約数和(自身を含む): 261152640

約数和(自身を除く): 179498400

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 67, 80, 96, 120, 134, 160, 201, 240, 268, 335, 402, 480, 536, 670, 804, 1005, 1072, 1340, 1608, 2010, 2144, 2539, 2680, 3216, 4020, 5078, 5360, 6432, 7617, 8040, 10156, 10720, 12695, 15234, 16080, 20312, 25390, 30468, 32160, 38085, 40624, 50780, 60936, 76170, 81248, 101560, 121872, 152340, 170113, 203120, 243744, 304680, 340226, 406240, 510339, 609360, 680452, 850565, 1020678, 1218720, 1360904, 1701130, 2041356, 2551695, 2721808, 3402260, 4082712, 5103390, 5443616, 6804520, 8165424, 10206780, 13609040, 16330848, 20413560, 27218080, 40827120, 81654240]

約数ペア:

[(1, 81654240), (2, 40827120), (3, 27218080), (4, 20413560), (5, 16330848), (6, 13609040), (8, 10206780), (10, 8165424), (12, 6804520), (15, 5443616), (16, 5103390), (20, 4082712), (24, 3402260), (30, 2721808), (32, 2551695), (40, 2041356), (48, 1701130), (60, 1360904), (67, 1218720), (80, 1020678), (96, 850565), (120, 680452), (134, 609360), (160, 510339), (201, 406240), (240, 340226), (268, 304680), (335, 243744), (402, 203120), (480, 170113), (536, 152340), (670, 121872), (804, 101560), (1005, 81248), (1072, 76170), (1340, 60936), (1608, 50780), (2010, 40624), (2144, 38085), (2539, 32160), (2680, 30468), (3216, 25390), (4020, 20312), (5078, 16080), (5360, 15234), (6432, 12695), (7617, 10720), (8040, 10156)]