78841280

素因数分解:

$2^6\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{577}}^1$

素因数の和:662

約数の個数: 112

約数和(自身を含む): 218456256

約数和(自身を除く): 139614976

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 61, 64, 70, 80, 112, 122, 140, 160, 224, 244, 280, 305, 320, 427, 448, 488, 560, 577, 610, 854, 976, 1120, 1154, 1220, 1708, 1952, 2135, 2240, 2308, 2440, 2885, 3416, 3904, 4039, 4270, 4616, 4880, 5770, 6832, 8078, 8540, 9232, 9760, 11540, 13664, 16156, 17080, 18464, 19520, 20195, 23080, 27328, 32312, 34160, 35197, 36928, 40390, 46160, 64624, 68320, 70394, 80780, 92320, 129248, 136640, 140788, 161560, 175985, 184640, 246379, 258496, 281576, 323120, 351970, 492758, 563152, 646240, 703940, 985516, 1126304, 1231895, 1292480, 1407880, 1971032, 2252608, 2463790, 2815760, 3942064, 4927580, 5631520, 7884128, 9855160, 11263040, 15768256, 19710320, 39420640, 78841280]

約数ペア:

[(1, 78841280), (2, 39420640), (4, 19710320), (5, 15768256), (7, 11263040), (8, 9855160), (10, 7884128), (14, 5631520), (16, 4927580), (20, 3942064), (28, 2815760), (32, 2463790), (35, 2252608), (40, 1971032), (56, 1407880), (61, 1292480), (64, 1231895), (70, 1126304), (80, 985516), (112, 703940), (122, 646240), (140, 563152), (160, 492758), (224, 351970), (244, 323120), (280, 281576), (305, 258496), (320, 246379), (427, 184640), (448, 175985), (488, 161560), (560, 140788), (577, 136640), (610, 129248), (854, 92320), (976, 80780), (1120, 70394), (1154, 68320), (1220, 64624), (1708, 46160), (1952, 40390), (2135, 36928), (2240, 35197), (2308, 34160), (2440, 32312), (2885, 27328), (3416, 23080), (3904, 20195), (4039, 19520), (4270, 18464), (4616, 17080), (4880, 16156), (5770, 13664), (6832, 11540), (8078, 9760), (8540, 9232)]