20664720

素因数分解:

$2^4\times 3^5\times 5^1\times {\mathrm{1063}}^1$

素因数の和:1091

約数の個数: 120

約数和(自身を含む): 72037056

約数和(自身を除く): 51372336

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, 243, 270, 324, 360, 405, 432, 486, 540, 648, 720, 810, 972, 1063, 1080, 1215, 1296, 1620, 1944, 2126, 2160, 2430, 3189, 3240, 3888, 4252, 4860, 5315, 6378, 6480, 8504, 9567, 9720, 10630, 12756, 15945, 17008, 19134, 19440, 21260, 25512, 28701, 31890, 38268, 42520, 47835, 51024, 57402, 63780, 76536, 85040, 86103, 95670, 114804, 127560, 143505, 153072, 172206, 191340, 229608, 255120, 258309, 287010, 344412, 382680, 430515, 459216, 516618, 574020, 688824, 765360, 861030, 1033236, 1148040, 1291545, 1377648, 1722060, 2066472, 2296080, 2583090, 3444120, 4132944, 5166180, 6888240, 10332360, 20664720]

約数ペア:

[(1, 20664720), (2, 10332360), (3, 6888240), (4, 5166180), (5, 4132944), (6, 3444120), (8, 2583090), (9, 2296080), (10, 2066472), (12, 1722060), (15, 1377648), (16, 1291545), (18, 1148040), (20, 1033236), (24, 861030), (27, 765360), (30, 688824), (36, 574020), (40, 516618), (45, 459216), (48, 430515), (54, 382680), (60, 344412), (72, 287010), (80, 258309), (81, 255120), (90, 229608), (108, 191340), (120, 172206), (135, 153072), (144, 143505), (162, 127560), (180, 114804), (216, 95670), (240, 86103), (243, 85040), (270, 76536), (324, 63780), (360, 57402), (405, 51024), (432, 47835), (486, 42520), (540, 38268), (648, 31890), (720, 28701), (810, 25512), (972, 21260), (1063, 19440), (1080, 19134), (1215, 17008), (1296, 15945), (1620, 12756), (1944, 10630), (2126, 9720), (2160, 9567), (2430, 8504), (3189, 6480), (3240, 6378), (3888, 5315), (4252, 4860)]