28708020

素因数分解:

$2^2\times 3^6\times 5^1\times {\mathrm{11}}^1\times {\mathrm{179}}^1$

素因数の和:217

約数の個数: 168

約数和(自身を含む): 99156960

約数和(自身を除く): 70448940

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 27, 30, 33, 36, 44, 45, 54, 55, 60, 66, 81, 90, 99, 108, 110, 132, 135, 162, 165, 179, 180, 198, 220, 243, 270, 297, 324, 330, 358, 396, 405, 486, 495, 537, 540, 594, 660, 716, 729, 810, 891, 895, 972, 990, 1074, 1188, 1215, 1458, 1485, 1611, 1620, 1782, 1790, 1969, 1980, 2148, 2430, 2673, 2685, 2916, 2970, 3222, 3564, 3580, 3645, 3938, 4455, 4833, 4860, 5346, 5370, 5907, 5940, 6444, 7290, 7876, 8019, 8055, 8910, 9666, 9845, 10692, 10740, 11814, 13365, 14499, 14580, 16038, 16110, 17721, 17820, 19332, 19690, 23628, 24165, 26730, 28998, 29535, 32076, 32220, 35442, 39380, 40095, 43497, 48330, 53163, 53460, 57996, 59070, 70884, 72495, 80190, 86994, 88605, 96660, 106326, 118140, 130491, 144990, 159489, 160380, 173988, 177210, 212652, 217485, 260982, 265815, 289980, 318978, 354420, 434970, 478467, 521964, 531630, 637956, 652455, 797445, 869940, 956934, 1063260, 1304910, 1435401, 1594890, 1913868, 2392335, 2609820, 2870802, 3189780, 4784670, 5741604, 7177005, 9569340, 14354010, 28708020]

約数ペア:

[(1, 28708020), (2, 14354010), (3, 9569340), (4, 7177005), (5, 5741604), (6, 4784670), (9, 3189780), (10, 2870802), (11, 2609820), (12, 2392335), (15, 1913868), (18, 1594890), (20, 1435401), (22, 1304910), (27, 1063260), (30, 956934), (33, 869940), (36, 797445), (44, 652455), (45, 637956), (54, 531630), (55, 521964), (60, 478467), (66, 434970), (81, 354420), (90, 318978), (99, 289980), (108, 265815), (110, 260982), (132, 217485), (135, 212652), (162, 177210), (165, 173988), (179, 160380), (180, 159489), (198, 144990), (220, 130491), (243, 118140), (270, 106326), (297, 96660), (324, 88605), (330, 86994), (358, 80190), (396, 72495), (405, 70884), (486, 59070), (495, 57996), (537, 53460), (540, 53163), (594, 48330), (660, 43497), (716, 40095), (729, 39380), (810, 35442), (891, 32220), (895, 32076), (972, 29535), (990, 28998), (1074, 26730), (1188, 24165), (1215, 23628), (1458, 19690), (1485, 19332), (1611, 17820), (1620, 17721), (1782, 16110), (1790, 16038), (1969, 14580), (1980, 14499), (2148, 13365), (2430, 11814), (2673, 10740), (2685, 10692), (2916, 9845), (2970, 9666), (3222, 8910), (3564, 8055), (3580, 8019), (3645, 7876), (3938, 7290), (4455, 6444), (4833, 5940), (4860, 5907), (5346, 5370)]