20890440

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{29}}^2$

素因数の和:101

約数の個数: 192

約数和(自身を含む): 75254400

約数和(自身を除く): 54363960

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 23, 24, 27, 29, 30, 36, 40, 45, 46, 54, 58, 60, 69, 72, 87, 90, 92, 108, 115, 116, 120, 135, 138, 145, 174, 180, 184, 207, 216, 230, 232, 261, 270, 276, 290, 345, 348, 360, 414, 435, 460, 522, 540, 552, 580, 621, 667, 690, 696, 783, 828, 841, 870, 920, 1035, 1044, 1080, 1160, 1242, 1305, 1334, 1380, 1566, 1656, 1682, 1740, 2001, 2070, 2088, 2484, 2523, 2610, 2668, 2760, 3105, 3132, 3335, 3364, 3480, 3915, 4002, 4140, 4205, 4968, 5046, 5220, 5336, 6003, 6210, 6264, 6670, 6728, 7569, 7830, 8004, 8280, 8410, 10005, 10092, 10440, 12006, 12420, 12615, 13340, 15138, 15660, 16008, 16820, 18009, 19343, 20010, 20184, 22707, 24012, 24840, 25230, 26680, 30015, 30276, 31320, 33640, 36018, 37845, 38686, 40020, 45414, 48024, 50460, 58029, 60030, 60552, 72036, 75690, 77372, 80040, 90045, 90828, 96715, 100920, 113535, 116058, 120060, 144072, 151380, 154744, 174087, 180090, 181656, 193430, 227070, 232116, 240120, 290145, 302760, 348174, 360180, 386860, 454140, 464232, 522261, 580290, 696348, 720360, 773720, 870435, 908280, 1044522, 1160580, 1392696, 1740870, 2089044, 2321160, 2611305, 3481740, 4178088, 5222610, 6963480, 10445220, 20890440]

約数ペア:

[(1, 20890440), (2, 10445220), (3, 6963480), (4, 5222610), (5, 4178088), (6, 3481740), (8, 2611305), (9, 2321160), (10, 2089044), (12, 1740870), (15, 1392696), (18, 1160580), (20, 1044522), (23, 908280), (24, 870435), (27, 773720), (29, 720360), (30, 696348), (36, 580290), (40, 522261), (45, 464232), (46, 454140), (54, 386860), (58, 360180), (60, 348174), (69, 302760), (72, 290145), (87, 240120), (90, 232116), (92, 227070), (108, 193430), (115, 181656), (116, 180090), (120, 174087), (135, 154744), (138, 151380), (145, 144072), (174, 120060), (180, 116058), (184, 113535), (207, 100920), (216, 96715), (230, 90828), (232, 90045), (261, 80040), (270, 77372), (276, 75690), (290, 72036), (345, 60552), (348, 60030), (360, 58029), (414, 50460), (435, 48024), (460, 45414), (522, 40020), (540, 38686), (552, 37845), (580, 36018), (621, 33640), (667, 31320), (690, 30276), (696, 30015), (783, 26680), (828, 25230), (841, 24840), (870, 24012), (920, 22707), (1035, 20184), (1044, 20010), (1080, 19343), (1160, 18009), (1242, 16820), (1305, 16008), (1334, 15660), (1380, 15138), (1566, 13340), (1656, 12615), (1682, 12420), (1740, 12006), (2001, 10440), (2070, 10092), (2088, 10005), (2484, 8410), (2523, 8280), (2610, 8004), (2668, 7830), (2760, 7569), (3105, 6728), (3132, 6670), (3335, 6264), (3364, 6210), (3480, 6003), (3915, 5336), (4002, 5220), (4140, 5046), (4205, 4968)]