77843440

素因数分解:

$2^4\times 5^1\times {\mathrm{79}}^1\times {\mathrm{109}}^1\times {\mathrm{113}}^1$

素因数の和:314

約数の個数: 80

約数和(自身を含む): 186595200

約数和(自身を除く): 108751760

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 79, 80, 109, 113, 158, 218, 226, 316, 395, 436, 452, 545, 565, 632, 790, 872, 904, 1090, 1130, 1264, 1580, 1744, 1808, 2180, 2260, 3160, 4360, 4520, 6320, 8611, 8720, 8927, 9040, 12317, 17222, 17854, 24634, 34444, 35708, 43055, 44635, 49268, 61585, 68888, 71416, 86110, 89270, 98536, 123170, 137776, 142832, 172220, 178540, 197072, 246340, 344440, 357080, 492680, 688880, 714160, 973043, 985360, 1946086, 3892172, 4865215, 7784344, 9730430, 15568688, 19460860, 38921720, 77843440]

約数ペア:

[(1, 77843440), (2, 38921720), (4, 19460860), (5, 15568688), (8, 9730430), (10, 7784344), (16, 4865215), (20, 3892172), (40, 1946086), (79, 985360), (80, 973043), (109, 714160), (113, 688880), (158, 492680), (218, 357080), (226, 344440), (316, 246340), (395, 197072), (436, 178540), (452, 172220), (545, 142832), (565, 137776), (632, 123170), (790, 98536), (872, 89270), (904, 86110), (1090, 71416), (1130, 68888), (1264, 61585), (1580, 49268), (1744, 44635), (1808, 43055), (2180, 35708), (2260, 34444), (3160, 24634), (4360, 17854), (4520, 17222), (6320, 12317), (8611, 9040), (8720, 8927)]