21356400

素因数分解:

$2^4\times 3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{37}}^2$

素因数の和:108

約数の個数: 180

約数和(自身を含む): 75719112

約数和(自身を除く): 54362712

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 25, 26, 30, 37, 39, 40, 48, 50, 52, 60, 65, 74, 75, 78, 80, 100, 104, 111, 120, 130, 148, 150, 156, 185, 195, 200, 208, 222, 240, 260, 296, 300, 312, 325, 370, 390, 400, 444, 481, 520, 555, 592, 600, 624, 650, 740, 780, 888, 925, 962, 975, 1040, 1110, 1200, 1300, 1369, 1443, 1480, 1560, 1776, 1850, 1924, 1950, 2220, 2405, 2600, 2738, 2775, 2886, 2960, 3120, 3700, 3848, 3900, 4107, 4440, 4810, 5200, 5476, 5550, 5772, 6845, 7215, 7400, 7696, 7800, 8214, 8880, 9620, 10952, 11100, 11544, 12025, 13690, 14430, 14800, 15600, 16428, 17797, 19240, 20535, 21904, 22200, 23088, 24050, 27380, 28860, 32856, 34225, 35594, 36075, 38480, 41070, 44400, 48100, 53391, 54760, 57720, 65712, 68450, 71188, 72150, 82140, 88985, 96200, 102675, 106782, 109520, 115440, 136900, 142376, 144300, 164280, 177970, 192400, 205350, 213564, 266955, 273800, 284752, 288600, 328560, 355940, 410700, 427128, 444925, 533910, 547600, 577200, 711880, 821400, 854256, 889850, 1067820, 1334775, 1423760, 1642800, 1779700, 2135640, 2669550, 3559400, 4271280, 5339100, 7118800, 10678200, 21356400]

約数ペア:

[(1, 21356400), (2, 10678200), (3, 7118800), (4, 5339100), (5, 4271280), (6, 3559400), (8, 2669550), (10, 2135640), (12, 1779700), (13, 1642800), (15, 1423760), (16, 1334775), (20, 1067820), (24, 889850), (25, 854256), (26, 821400), (30, 711880), (37, 577200), (39, 547600), (40, 533910), (48, 444925), (50, 427128), (52, 410700), (60, 355940), (65, 328560), (74, 288600), (75, 284752), (78, 273800), (80, 266955), (100, 213564), (104, 205350), (111, 192400), (120, 177970), (130, 164280), (148, 144300), (150, 142376), (156, 136900), (185, 115440), (195, 109520), (200, 106782), (208, 102675), (222, 96200), (240, 88985), (260, 82140), (296, 72150), (300, 71188), (312, 68450), (325, 65712), (370, 57720), (390, 54760), (400, 53391), (444, 48100), (481, 44400), (520, 41070), (555, 38480), (592, 36075), (600, 35594), (624, 34225), (650, 32856), (740, 28860), (780, 27380), (888, 24050), (925, 23088), (962, 22200), (975, 21904), (1040, 20535), (1110, 19240), (1200, 17797), (1300, 16428), (1369, 15600), (1443, 14800), (1480, 14430), (1560, 13690), (1776, 12025), (1850, 11544), (1924, 11100), (1950, 10952), (2220, 9620), (2405, 8880), (2600, 8214), (2738, 7800), (2775, 7696), (2886, 7400), (2960, 7215), (3120, 6845), (3700, 5772), (3848, 5550), (3900, 5476), (4107, 5200), (4440, 4810)]