80121860

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{331}}^1$

素因数の和:386

約数の個数: 144

約数和(自身を含む): 222546240

約数和(自身を除く): 142424380

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 19, 20, 26, 28, 35, 38, 49, 52, 65, 70, 76, 91, 95, 98, 130, 133, 140, 182, 190, 196, 245, 247, 260, 266, 331, 364, 380, 455, 490, 494, 532, 637, 662, 665, 910, 931, 980, 988, 1235, 1274, 1324, 1330, 1655, 1729, 1820, 1862, 2317, 2470, 2548, 2660, 3185, 3310, 3458, 3724, 4303, 4634, 4655, 4940, 6289, 6370, 6620, 6916, 8606, 8645, 9268, 9310, 11585, 12103, 12578, 12740, 16219, 17212, 17290, 18620, 21515, 23170, 24206, 25156, 30121, 31445, 32438, 34580, 43030, 44023, 46340, 48412, 60242, 60515, 62890, 64876, 81095, 81757, 86060, 88046, 120484, 121030, 125780, 150605, 162190, 163514, 176092, 210847, 220115, 242060, 301210, 308161, 324380, 327028, 408785, 421694, 440230, 572299, 602420, 616322, 817570, 843388, 880460, 1054235, 1144598, 1232644, 1540805, 1635140, 2108470, 2289196, 2861495, 3081610, 4006093, 4216940, 5722990, 6163220, 8012186, 11445980, 16024372, 20030465, 40060930, 80121860]

約数ペア:

[(1, 80121860), (2, 40060930), (4, 20030465), (5, 16024372), (7, 11445980), (10, 8012186), (13, 6163220), (14, 5722990), (19, 4216940), (20, 4006093), (26, 3081610), (28, 2861495), (35, 2289196), (38, 2108470), (49, 1635140), (52, 1540805), (65, 1232644), (70, 1144598), (76, 1054235), (91, 880460), (95, 843388), (98, 817570), (130, 616322), (133, 602420), (140, 572299), (182, 440230), (190, 421694), (196, 408785), (245, 327028), (247, 324380), (260, 308161), (266, 301210), (331, 242060), (364, 220115), (380, 210847), (455, 176092), (490, 163514), (494, 162190), (532, 150605), (637, 125780), (662, 121030), (665, 120484), (910, 88046), (931, 86060), (980, 81757), (988, 81095), (1235, 64876), (1274, 62890), (1324, 60515), (1330, 60242), (1655, 48412), (1729, 46340), (1820, 44023), (1862, 43030), (2317, 34580), (2470, 32438), (2548, 31445), (2660, 30121), (3185, 25156), (3310, 24206), (3458, 23170), (3724, 21515), (4303, 18620), (4634, 17290), (4655, 17212), (4940, 16219), (6289, 12740), (6370, 12578), (6620, 12103), (6916, 11585), (8606, 9310), (8645, 9268)]