919928548

素因数分解:

$2^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{1321}}^1$

素因数の和:1386

約数の個数: 144

約数和(自身を含む): 2278704960

約数和(自身を除く): 1358776412

約数列:

[1, 2, 4, 7, 11, 14, 17, 19, 22, 28, 34, 38, 44, 49, 68, 76, 77, 98, 119, 133, 154, 187, 196, 209, 238, 266, 308, 323, 374, 418, 476, 532, 539, 646, 748, 833, 836, 931, 1078, 1292, 1309, 1321, 1463, 1666, 1862, 2156, 2261, 2618, 2642, 2926, 3332, 3553, 3724, 4522, 5236, 5284, 5852, 7106, 9044, 9163, 9247, 10241, 14212, 14531, 15827, 18326, 18494, 20482, 22457, 24871, 25099, 29062, 31654, 36652, 36988, 40964, 44914, 49742, 50198, 58124, 63308, 64729, 89828, 99484, 100396, 101717, 129458, 157199, 174097, 175693, 203434, 247027, 258916, 276089, 314398, 348194, 351386, 406868, 426683, 494054, 552178, 628796, 696388, 702772, 712019, 853366, 988108, 1100393, 1104356, 1229851, 1424038, 1706732, 1729189, 1932623, 2200786, 2459702, 2848076, 2986781, 3458378, 3865246, 4401572, 4693513, 4919404, 5973562, 6916756, 7730492, 9387026, 11947124, 12104323, 13528361, 18774052, 20907467, 24208646, 27056722, 32854591, 41814934, 48417292, 54113444, 65709182, 83629868, 131418364, 229982137, 459964274, 919928548]

約数ペア:

[(1, 919928548), (2, 459964274), (4, 229982137), (7, 131418364), (11, 83629868), (14, 65709182), (17, 54113444), (19, 48417292), (22, 41814934), (28, 32854591), (34, 27056722), (38, 24208646), (44, 20907467), (49, 18774052), (68, 13528361), (76, 12104323), (77, 11947124), (98, 9387026), (119, 7730492), (133, 6916756), (154, 5973562), (187, 4919404), (196, 4693513), (209, 4401572), (238, 3865246), (266, 3458378), (308, 2986781), (323, 2848076), (374, 2459702), (418, 2200786), (476, 1932623), (532, 1729189), (539, 1706732), (646, 1424038), (748, 1229851), (833, 1104356), (836, 1100393), (931, 988108), (1078, 853366), (1292, 712019), (1309, 702772), (1321, 696388), (1463, 628796), (1666, 552178), (1862, 494054), (2156, 426683), (2261, 406868), (2618, 351386), (2642, 348194), (2926, 314398), (3332, 276089), (3553, 258916), (3724, 247027), (4522, 203434), (5236, 175693), (5284, 174097), (5852, 157199), (7106, 129458), (9044, 101717), (9163, 100396), (9247, 99484), (10241, 89828), (14212, 64729), (14531, 63308), (15827, 58124), (18326, 50198), (18494, 49742), (20482, 44914), (22457, 40964), (24871, 36988), (25099, 36652), (29062, 31654)]