8427068020

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{83}}^1\times {\mathrm{313}}^1\times {\mathrm{331}}^1$

素因数の和:750

約数の個数: 144

約数和(自身を含む): 20963855808

約数和(自身を除く): 12536787788

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 83, 98, 140, 166, 196, 245, 313, 331, 332, 415, 490, 581, 626, 662, 830, 980, 1162, 1252, 1324, 1565, 1655, 1660, 2191, 2317, 2324, 2905, 3130, 3310, 4067, 4382, 4634, 5810, 6260, 6620, 8134, 8764, 9268, 10955, 11585, 11620, 15337, 16219, 16268, 20335, 21910, 23170, 25979, 27473, 30674, 32438, 40670, 43820, 46340, 51958, 54946, 61348, 64876, 76685, 81095, 81340, 103603, 103916, 109892, 129895, 137365, 153370, 162190, 181853, 192311, 207206, 259790, 274730, 306740, 324380, 363706, 384622, 414412, 518015, 519580, 549460, 725221, 727412, 769244, 909265, 961555, 1036030, 1272971, 1346177, 1450442, 1818530, 1923110, 2072060, 2545942, 2692354, 2900884, 3626105, 3637060, 3846220, 5076547, 5091884, 5384708, 6364855, 6730885, 7252210, 8599049, 10153094, 12729710, 13461770, 14504420, 17198098, 20306188, 25382735, 25459420, 26923540, 34396196, 42995245, 50765470, 60193343, 85990490, 101530940, 120386686, 171980980, 240773372, 300966715, 421353401, 601933430, 842706802, 1203866860, 1685413604, 2106767005, 4213534010, 8427068020]

約数ペア:

[(1, 8427068020), (2, 4213534010), (4, 2106767005), (5, 1685413604), (7, 1203866860), (10, 842706802), (14, 601933430), (20, 421353401), (28, 300966715), (35, 240773372), (49, 171980980), (70, 120386686), (83, 101530940), (98, 85990490), (140, 60193343), (166, 50765470), (196, 42995245), (245, 34396196), (313, 26923540), (331, 25459420), (332, 25382735), (415, 20306188), (490, 17198098), (581, 14504420), (626, 13461770), (662, 12729710), (830, 10153094), (980, 8599049), (1162, 7252210), (1252, 6730885), (1324, 6364855), (1565, 5384708), (1655, 5091884), (1660, 5076547), (2191, 3846220), (2317, 3637060), (2324, 3626105), (2905, 2900884), (3130, 2692354), (3310, 2545942), (4067, 2072060), (4382, 1923110), (4634, 1818530), (5810, 1450442), (6260, 1346177), (6620, 1272971), (8134, 1036030), (8764, 961555), (9268, 909265), (10955, 769244), (11585, 727412), (11620, 725221), (15337, 549460), (16219, 519580), (16268, 518015), (20335, 414412), (21910, 384622), (23170, 363706), (25979, 324380), (27473, 306740), (30674, 274730), (32438, 259790), (40670, 207206), (43820, 192311), (46340, 181853), (51958, 162190), (54946, 153370), (61348, 137365), (64876, 129895), (76685, 109892), (81095, 103916), (81340, 103603)]