690838520

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{349}}^1$

素因数の和:489

約数の個数: 128

約数和(自身を含む): 1714608000

約数和(自身を除く): 1023769480

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 41, 68, 71, 82, 85, 136, 142, 164, 170, 205, 284, 328, 340, 349, 355, 410, 568, 680, 697, 698, 710, 820, 1207, 1394, 1396, 1420, 1640, 1745, 2414, 2788, 2792, 2840, 2911, 3485, 3490, 4828, 5576, 5822, 5933, 6035, 6970, 6980, 9656, 11644, 11866, 12070, 13940, 13960, 14309, 14555, 23288, 23732, 24140, 24779, 27880, 28618, 29110, 29665, 47464, 48280, 49487, 49558, 57236, 58220, 59330, 71545, 98974, 99116, 114472, 116440, 118660, 123895, 143090, 197948, 198232, 237320, 243253, 247435, 247790, 286180, 395896, 421243, 486506, 494870, 495580, 572360, 842486, 973012, 989740, 991160, 1015939, 1216265, 1684972, 1946024, 1979480, 2031878, 2106215, 2432530, 3369944, 4063756, 4212430, 4865060, 5079695, 8127512, 8424860, 9730120, 10159390, 16849720, 17270963, 20318780, 34541926, 40637560, 69083852, 86354815, 138167704, 172709630, 345419260, 690838520]

約数ペア:

[(1, 690838520), (2, 345419260), (4, 172709630), (5, 138167704), (8, 86354815), (10, 69083852), (17, 40637560), (20, 34541926), (34, 20318780), (40, 17270963), (41, 16849720), (68, 10159390), (71, 9730120), (82, 8424860), (85, 8127512), (136, 5079695), (142, 4865060), (164, 4212430), (170, 4063756), (205, 3369944), (284, 2432530), (328, 2106215), (340, 2031878), (349, 1979480), (355, 1946024), (410, 1684972), (568, 1216265), (680, 1015939), (697, 991160), (698, 989740), (710, 973012), (820, 842486), (1207, 572360), (1394, 495580), (1396, 494870), (1420, 486506), (1640, 421243), (1745, 395896), (2414, 286180), (2788, 247790), (2792, 247435), (2840, 243253), (2911, 237320), (3485, 198232), (3490, 197948), (4828, 143090), (5576, 123895), (5822, 118660), (5933, 116440), (6035, 114472), (6970, 99116), (6980, 98974), (9656, 71545), (11644, 59330), (11866, 58220), (12070, 57236), (13940, 49558), (13960, 49487), (14309, 48280), (14555, 47464), (23288, 29665), (23732, 29110), (24140, 28618), (24779, 27880)]