128567760

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{79}}^1\times {\mathrm{6781}}^1$

素因数の和:6876

約数の個数: 80

約数和(自身を含む): 403664640

約数和(自身を除く): 275096880

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 79, 80, 120, 158, 237, 240, 316, 395, 474, 632, 790, 948, 1185, 1264, 1580, 1896, 2370, 3160, 3792, 4740, 6320, 6781, 9480, 13562, 18960, 20343, 27124, 33905, 40686, 54248, 67810, 81372, 101715, 108496, 135620, 162744, 203430, 271240, 325488, 406860, 535699, 542480, 813720, 1071398, 1607097, 1627440, 2142796, 2678495, 3214194, 4285592, 5356990, 6428388, 8035485, 8571184, 10713980, 12856776, 16070970, 21427960, 25713552, 32141940, 42855920, 64283880, 128567760]

約数ペア:

[(1, 128567760), (2, 64283880), (3, 42855920), (4, 32141940), (5, 25713552), (6, 21427960), (8, 16070970), (10, 12856776), (12, 10713980), (15, 8571184), (16, 8035485), (20, 6428388), (24, 5356990), (30, 4285592), (40, 3214194), (48, 2678495), (60, 2142796), (79, 1627440), (80, 1607097), (120, 1071398), (158, 813720), (237, 542480), (240, 535699), (316, 406860), (395, 325488), (474, 271240), (632, 203430), (790, 162744), (948, 135620), (1185, 108496), (1264, 101715), (1580, 81372), (1896, 67810), (2370, 54248), (3160, 40686), (3792, 33905), (4740, 27124), (6320, 20343), (6781, 18960), (9480, 13562)]