20678760

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{467}}^1$

素因数の和:528

約数の個数: 128

約数和(自身を含む): 70761600

約数和(自身を除く): 50082840

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 41, 45, 54, 60, 72, 82, 90, 108, 120, 123, 135, 164, 180, 205, 216, 246, 270, 328, 360, 369, 410, 467, 492, 540, 615, 738, 820, 934, 984, 1080, 1107, 1230, 1401, 1476, 1640, 1845, 1868, 2214, 2335, 2460, 2802, 2952, 3690, 3736, 4203, 4428, 4670, 4920, 5535, 5604, 7005, 7380, 8406, 8856, 9340, 11070, 11208, 12609, 14010, 14760, 16812, 18680, 19147, 21015, 22140, 25218, 28020, 33624, 38294, 42030, 44280, 50436, 56040, 57441, 63045, 76588, 84060, 95735, 100872, 114882, 126090, 153176, 168120, 172323, 191470, 229764, 252180, 287205, 344646, 382940, 459528, 504360, 516969, 574410, 689292, 765880, 861615, 1033938, 1148820, 1378584, 1723230, 2067876, 2297640, 2584845, 3446460, 4135752, 5169690, 6892920, 10339380, 20678760]

約数ペア:

[(1, 20678760), (2, 10339380), (3, 6892920), (4, 5169690), (5, 4135752), (6, 3446460), (8, 2584845), (9, 2297640), (10, 2067876), (12, 1723230), (15, 1378584), (18, 1148820), (20, 1033938), (24, 861615), (27, 765880), (30, 689292), (36, 574410), (40, 516969), (41, 504360), (45, 459528), (54, 382940), (60, 344646), (72, 287205), (82, 252180), (90, 229764), (108, 191470), (120, 172323), (123, 168120), (135, 153176), (164, 126090), (180, 114882), (205, 100872), (216, 95735), (246, 84060), (270, 76588), (328, 63045), (360, 57441), (369, 56040), (410, 50436), (467, 44280), (492, 42030), (540, 38294), (615, 33624), (738, 28020), (820, 25218), (934, 22140), (984, 21015), (1080, 19147), (1107, 18680), (1230, 16812), (1401, 14760), (1476, 14010), (1640, 12609), (1845, 11208), (1868, 11070), (2214, 9340), (2335, 8856), (2460, 8406), (2802, 7380), (2952, 7005), (3690, 5604), (3736, 5535), (4203, 4920), (4428, 4670)]