644364720

素因数分解:

$2^4\times 3^4\times 5^1\times {\mathrm{99439}}^1$

素因数の和:99464

約数の個数: 100

約数和(自身を含む): 2237996640

約数和(自身を除く): 1593631920

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 36, 40, 45, 48, 54, 60, 72, 80, 81, 90, 108, 120, 135, 144, 162, 180, 216, 240, 270, 324, 360, 405, 432, 540, 648, 720, 810, 1080, 1296, 1620, 2160, 3240, 6480, 99439, 198878, 298317, 397756, 497195, 596634, 795512, 894951, 994390, 1193268, 1491585, 1591024, 1789902, 1988780, 2386536, 2684853, 2983170, 3579804, 3977560, 4474755, 4773072, 5369706, 5966340, 7159608, 7955120, 8054559, 8949510, 10739412, 11932680, 13424265, 14319216, 16109118, 17899020, 21478824, 23865360, 26848530, 32218236, 35798040, 40272795, 42957648, 53697060, 64436472, 71596080, 80545590, 107394120, 128872944, 161091180, 214788240, 322182360, 644364720]

約数ペア:

[(1, 644364720), (2, 322182360), (3, 214788240), (4, 161091180), (5, 128872944), (6, 107394120), (8, 80545590), (9, 71596080), (10, 64436472), (12, 53697060), (15, 42957648), (16, 40272795), (18, 35798040), (20, 32218236), (24, 26848530), (27, 23865360), (30, 21478824), (36, 17899020), (40, 16109118), (45, 14319216), (48, 13424265), (54, 11932680), (60, 10739412), (72, 8949510), (80, 8054559), (81, 7955120), (90, 7159608), (108, 5966340), (120, 5369706), (135, 4773072), (144, 4474755), (162, 3977560), (180, 3579804), (216, 2983170), (240, 2684853), (270, 2386536), (324, 1988780), (360, 1789902), (405, 1591024), (432, 1491585), (540, 1193268), (648, 994390), (720, 894951), (810, 795512), (1080, 596634), (1296, 497195), (1620, 397756), (2160, 298317), (3240, 198878), (6480, 99439)]