128221740

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{79}}^1\times {\mathrm{127}}^1$

素因数の和:292

約数の個数: 144

約数和(自身を含む): 402554880

約数和(自身を除く): 274333140

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 71, 79, 90, 127, 142, 158, 180, 213, 237, 254, 284, 316, 355, 381, 395, 426, 474, 508, 635, 639, 710, 711, 762, 790, 852, 948, 1065, 1143, 1185, 1270, 1278, 1420, 1422, 1524, 1580, 1905, 2130, 2286, 2370, 2540, 2556, 2844, 3195, 3555, 3810, 4260, 4572, 4740, 5609, 5715, 6390, 7110, 7620, 9017, 10033, 11218, 11430, 12780, 14220, 16827, 18034, 20066, 22436, 22860, 27051, 28045, 30099, 33654, 36068, 40132, 45085, 50165, 50481, 54102, 56090, 60198, 67308, 81153, 84135, 90170, 90297, 100330, 100962, 108204, 112180, 120396, 135255, 150495, 162306, 168270, 180340, 180594, 200660, 201924, 252405, 270510, 300990, 324612, 336540, 361188, 405765, 451485, 504810, 541020, 601980, 712343, 811530, 902970, 1009620, 1424686, 1623060, 1805940, 2137029, 2849372, 3561715, 4274058, 6411087, 7123430, 8548116, 10685145, 12822174, 14246860, 21370290, 25644348, 32055435, 42740580, 64110870, 128221740]

約数ペア:

[(1, 128221740), (2, 64110870), (3, 42740580), (4, 32055435), (5, 25644348), (6, 21370290), (9, 14246860), (10, 12822174), (12, 10685145), (15, 8548116), (18, 7123430), (20, 6411087), (30, 4274058), (36, 3561715), (45, 2849372), (60, 2137029), (71, 1805940), (79, 1623060), (90, 1424686), (127, 1009620), (142, 902970), (158, 811530), (180, 712343), (213, 601980), (237, 541020), (254, 504810), (284, 451485), (316, 405765), (355, 361188), (381, 336540), (395, 324612), (426, 300990), (474, 270510), (508, 252405), (635, 201924), (639, 200660), (710, 180594), (711, 180340), (762, 168270), (790, 162306), (852, 150495), (948, 135255), (1065, 120396), (1143, 112180), (1185, 108204), (1270, 100962), (1278, 100330), (1420, 90297), (1422, 90170), (1524, 84135), (1580, 81153), (1905, 67308), (2130, 60198), (2286, 56090), (2370, 54102), (2540, 50481), (2556, 50165), (2844, 45085), (3195, 40132), (3555, 36068), (3810, 33654), (4260, 30099), (4572, 28045), (4740, 27051), (5609, 22860), (5715, 22436), (6390, 20066), (7110, 18034), (7620, 16827), (9017, 14220), (10033, 12780), (11218, 11430)]