661537320

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{479}}^1\times {\mathrm{677}}^1$

素因数の和:1187

約数の個数: 128

約数和(自身を含む): 2108851200

約数和(自身を除く): 1447313880

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 17, 20, 24, 30, 34, 40, 51, 60, 68, 85, 102, 120, 136, 170, 204, 255, 340, 408, 479, 510, 677, 680, 958, 1020, 1354, 1437, 1916, 2031, 2040, 2395, 2708, 2874, 3385, 3832, 4062, 4790, 5416, 5748, 6770, 7185, 8124, 8143, 9580, 10155, 11496, 11509, 13540, 14370, 16248, 16286, 19160, 20310, 23018, 24429, 27080, 28740, 32572, 34527, 40620, 40715, 46036, 48858, 57480, 57545, 65144, 69054, 81240, 81430, 92072, 97716, 115090, 122145, 138108, 162860, 172635, 195432, 230180, 244290, 276216, 324283, 325720, 345270, 460360, 488580, 648566, 690540, 972849, 977160, 1297132, 1381080, 1621415, 1945698, 2594264, 3242830, 3891396, 4864245, 5512811, 6485660, 7782792, 9728490, 11025622, 12971320, 16538433, 19456980, 22051244, 27564055, 33076866, 38913960, 44102488, 55128110, 66153732, 82692165, 110256220, 132307464, 165384330, 220512440, 330768660, 661537320]

約数ペア:

[(1, 661537320), (2, 330768660), (3, 220512440), (4, 165384330), (5, 132307464), (6, 110256220), (8, 82692165), (10, 66153732), (12, 55128110), (15, 44102488), (17, 38913960), (20, 33076866), (24, 27564055), (30, 22051244), (34, 19456980), (40, 16538433), (51, 12971320), (60, 11025622), (68, 9728490), (85, 7782792), (102, 6485660), (120, 5512811), (136, 4864245), (170, 3891396), (204, 3242830), (255, 2594264), (340, 1945698), (408, 1621415), (479, 1381080), (510, 1297132), (677, 977160), (680, 972849), (958, 690540), (1020, 648566), (1354, 488580), (1437, 460360), (1916, 345270), (2031, 325720), (2040, 324283), (2395, 276216), (2708, 244290), (2874, 230180), (3385, 195432), (3832, 172635), (4062, 162860), (4790, 138108), (5416, 122145), (5748, 115090), (6770, 97716), (7185, 92072), (8124, 81430), (8143, 81240), (9580, 69054), (10155, 65144), (11496, 57545), (11509, 57480), (13540, 48858), (14370, 46036), (16248, 40715), (16286, 40620), (19160, 34527), (20310, 32572), (23018, 28740), (24429, 27080)]