20145240

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{811}}^1$

素因数の和:854

約数の個数: 128

約数和(自身を含む): 70156800

約数和(自身を除く): 50011560

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 23, 24, 27, 30, 36, 40, 45, 46, 54, 60, 69, 72, 90, 92, 108, 115, 120, 135, 138, 180, 184, 207, 216, 230, 270, 276, 345, 360, 414, 460, 540, 552, 621, 690, 811, 828, 920, 1035, 1080, 1242, 1380, 1622, 1656, 2070, 2433, 2484, 2760, 3105, 3244, 4055, 4140, 4866, 4968, 6210, 6488, 7299, 8110, 8280, 9732, 12165, 12420, 14598, 16220, 18653, 19464, 21897, 24330, 24840, 29196, 32440, 36495, 37306, 43794, 48660, 55959, 58392, 72990, 74612, 87588, 93265, 97320, 109485, 111918, 145980, 149224, 167877, 175176, 186530, 218970, 223836, 279795, 291960, 335754, 373060, 437940, 447672, 503631, 559590, 671508, 746120, 839385, 875880, 1007262, 1119180, 1343016, 1678770, 2014524, 2238360, 2518155, 3357540, 4029048, 5036310, 6715080, 10072620, 20145240]

約数ペア:

[(1, 20145240), (2, 10072620), (3, 6715080), (4, 5036310), (5, 4029048), (6, 3357540), (8, 2518155), (9, 2238360), (10, 2014524), (12, 1678770), (15, 1343016), (18, 1119180), (20, 1007262), (23, 875880), (24, 839385), (27, 746120), (30, 671508), (36, 559590), (40, 503631), (45, 447672), (46, 437940), (54, 373060), (60, 335754), (69, 291960), (72, 279795), (90, 223836), (92, 218970), (108, 186530), (115, 175176), (120, 167877), (135, 149224), (138, 145980), (180, 111918), (184, 109485), (207, 97320), (216, 93265), (230, 87588), (270, 74612), (276, 72990), (345, 58392), (360, 55959), (414, 48660), (460, 43794), (540, 37306), (552, 36495), (621, 32440), (690, 29196), (811, 24840), (828, 24330), (920, 21897), (1035, 19464), (1080, 18653), (1242, 16220), (1380, 14598), (1622, 12420), (1656, 12165), (2070, 9732), (2433, 8280), (2484, 8110), (2760, 7299), (3105, 6488), (3244, 6210), (4055, 4968), (4140, 4866)]