20868000

素因数分解:

$2^5\times 3^1\times 5^3\times {\mathrm{37}}^1\times {\mathrm{47}}^1$

素因数の和:112

約数の個数: 192

約数和(自身を含む): 71705088

約数和(自身を除く): 50837088

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 25, 30, 32, 37, 40, 47, 48, 50, 60, 74, 75, 80, 94, 96, 100, 111, 120, 125, 141, 148, 150, 160, 185, 188, 200, 222, 235, 240, 250, 282, 296, 300, 370, 375, 376, 400, 444, 470, 480, 500, 555, 564, 592, 600, 705, 740, 750, 752, 800, 888, 925, 940, 1000, 1110, 1128, 1175, 1184, 1200, 1410, 1480, 1500, 1504, 1739, 1776, 1850, 1880, 2000, 2220, 2256, 2350, 2400, 2775, 2820, 2960, 3000, 3478, 3525, 3552, 3700, 3760, 4000, 4440, 4512, 4625, 4700, 5217, 5550, 5640, 5875, 5920, 6000, 6956, 7050, 7400, 7520, 8695, 8880, 9250, 9400, 10434, 11100, 11280, 11750, 12000, 13875, 13912, 14100, 14800, 17390, 17625, 17760, 18500, 18800, 20868, 22200, 22560, 23500, 26085, 27750, 27824, 28200, 29600, 34780, 35250, 37000, 37600, 41736, 43475, 44400, 47000, 52170, 55500, 55648, 56400, 69560, 70500, 74000, 83472, 86950, 88800, 94000, 104340, 111000, 112800, 130425, 139120, 141000, 148000, 166944, 173900, 188000, 208680, 217375, 222000, 260850, 278240, 282000, 347800, 417360, 434750, 444000, 521700, 564000, 652125, 695600, 834720, 869500, 1043400, 1304250, 1391200, 1739000, 2086800, 2608500, 3478000, 4173600, 5217000, 6956000, 10434000, 20868000]

約数ペア:

[(1, 20868000), (2, 10434000), (3, 6956000), (4, 5217000), (5, 4173600), (6, 3478000), (8, 2608500), (10, 2086800), (12, 1739000), (15, 1391200), (16, 1304250), (20, 1043400), (24, 869500), (25, 834720), (30, 695600), (32, 652125), (37, 564000), (40, 521700), (47, 444000), (48, 434750), (50, 417360), (60, 347800), (74, 282000), (75, 278240), (80, 260850), (94, 222000), (96, 217375), (100, 208680), (111, 188000), (120, 173900), (125, 166944), (141, 148000), (148, 141000), (150, 139120), (160, 130425), (185, 112800), (188, 111000), (200, 104340), (222, 94000), (235, 88800), (240, 86950), (250, 83472), (282, 74000), (296, 70500), (300, 69560), (370, 56400), (375, 55648), (376, 55500), (400, 52170), (444, 47000), (470, 44400), (480, 43475), (500, 41736), (555, 37600), (564, 37000), (592, 35250), (600, 34780), (705, 29600), (740, 28200), (750, 27824), (752, 27750), (800, 26085), (888, 23500), (925, 22560), (940, 22200), (1000, 20868), (1110, 18800), (1128, 18500), (1175, 17760), (1184, 17625), (1200, 17390), (1410, 14800), (1480, 14100), (1500, 13912), (1504, 13875), (1739, 12000), (1776, 11750), (1850, 11280), (1880, 11100), (2000, 10434), (2220, 9400), (2256, 9250), (2350, 8880), (2400, 8695), (2775, 7520), (2820, 7400), (2960, 7050), (3000, 6956), (3478, 6000), (3525, 5920), (3552, 5875), (3700, 5640), (3760, 5550), (4000, 5217), (4440, 4700), (4512, 4625)]