80123380

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{157}}^1$

素因数の和:281

約数の個数: 96

約数和(自身を含む): 191116800

約数和(自身を除く): 110993420

約数列:

[1, 2, 4, 5, 10, 17, 19, 20, 34, 38, 68, 76, 79, 85, 95, 157, 158, 170, 190, 314, 316, 323, 340, 380, 395, 628, 646, 785, 790, 1292, 1343, 1501, 1570, 1580, 1615, 2669, 2686, 2983, 3002, 3140, 3230, 5338, 5372, 5966, 6004, 6460, 6715, 7505, 10676, 11932, 12403, 13345, 13430, 14915, 15010, 24806, 25517, 26690, 26860, 29830, 30020, 49612, 50711, 51034, 53380, 59660, 62015, 101422, 102068, 124030, 127585, 202844, 210851, 235657, 248060, 253555, 255170, 421702, 471314, 507110, 510340, 843404, 942628, 1014220, 1054255, 1178285, 2108510, 2356570, 4006169, 4217020, 4713140, 8012338, 16024676, 20030845, 40061690, 80123380]

約数ペア:

[(1, 80123380), (2, 40061690), (4, 20030845), (5, 16024676), (10, 8012338), (17, 4713140), (19, 4217020), (20, 4006169), (34, 2356570), (38, 2108510), (68, 1178285), (76, 1054255), (79, 1014220), (85, 942628), (95, 843404), (157, 510340), (158, 507110), (170, 471314), (190, 421702), (314, 255170), (316, 253555), (323, 248060), (340, 235657), (380, 210851), (395, 202844), (628, 127585), (646, 124030), (785, 102068), (790, 101422), (1292, 62015), (1343, 59660), (1501, 53380), (1570, 51034), (1580, 50711), (1615, 49612), (2669, 30020), (2686, 29830), (2983, 26860), (3002, 26690), (3140, 25517), (3230, 24806), (5338, 15010), (5372, 14915), (5966, 13430), (6004, 13345), (6460, 12403), (6715, 11932), (7505, 10676)]