68080880

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{1993}}^1$

素因数の和:2074

約数の個数: 80

約数和(自身を含む): 183958464

約数和(自身を除く): 115877584

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 61, 70, 80, 112, 122, 140, 244, 280, 305, 427, 488, 560, 610, 854, 976, 1220, 1708, 1993, 2135, 2440, 3416, 3986, 4270, 4880, 6832, 7972, 8540, 9965, 13951, 15944, 17080, 19930, 27902, 31888, 34160, 39860, 55804, 69755, 79720, 111608, 121573, 139510, 159440, 223216, 243146, 279020, 486292, 558040, 607865, 851011, 972584, 1116080, 1215730, 1702022, 1945168, 2431460, 3404044, 4255055, 4862920, 6808088, 8510110, 9725840, 13616176, 17020220, 34040440, 68080880]

約数ペア:

[(1, 68080880), (2, 34040440), (4, 17020220), (5, 13616176), (7, 9725840), (8, 8510110), (10, 6808088), (14, 4862920), (16, 4255055), (20, 3404044), (28, 2431460), (35, 1945168), (40, 1702022), (56, 1215730), (61, 1116080), (70, 972584), (80, 851011), (112, 607865), (122, 558040), (140, 486292), (244, 279020), (280, 243146), (305, 223216), (427, 159440), (488, 139510), (560, 121573), (610, 111608), (854, 79720), (976, 69755), (1220, 55804), (1708, 39860), (1993, 34160), (2135, 31888), (2440, 27902), (3416, 19930), (3986, 17080), (4270, 15944), (4880, 13951), (6832, 9965), (7972, 8540)]