28721700

素因数分解:

$2^2\times 3^2\times 5^2\times 7^1\times {\mathrm{47}}^1\times {\mathrm{97}}^1$

素因数の和:171

約数の個数: 216

約数和(自身を含む): 106159872

約数和(自身を除く): 77438172

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 25, 28, 30, 35, 36, 42, 45, 47, 50, 60, 63, 70, 75, 84, 90, 94, 97, 100, 105, 126, 140, 141, 150, 175, 180, 188, 194, 210, 225, 235, 252, 282, 291, 300, 315, 329, 350, 388, 420, 423, 450, 470, 485, 525, 564, 582, 630, 658, 679, 700, 705, 846, 873, 900, 940, 970, 987, 1050, 1164, 1175, 1260, 1316, 1358, 1410, 1455, 1575, 1645, 1692, 1746, 1940, 1974, 2037, 2100, 2115, 2350, 2425, 2716, 2820, 2910, 2961, 3150, 3290, 3395, 3492, 3525, 3948, 4074, 4230, 4365, 4559, 4700, 4850, 4935, 5820, 5922, 6111, 6300, 6580, 6790, 7050, 7275, 8148, 8225, 8460, 8730, 9118, 9700, 9870, 10185, 10575, 11844, 12222, 13580, 13677, 14100, 14550, 14805, 16450, 16975, 17460, 18236, 19740, 20370, 21150, 21825, 22795, 24444, 24675, 27354, 29100, 29610, 30555, 31913, 32900, 33950, 40740, 41031, 42300, 43650, 45590, 49350, 50925, 54708, 59220, 61110, 63826, 67900, 68385, 74025, 82062, 87300, 91180, 95739, 98700, 101850, 113975, 122220, 127652, 136770, 148050, 152775, 159565, 164124, 191478, 203700, 205155, 227950, 273540, 287217, 296100, 305550, 319130, 341925, 382956, 410310, 455900, 478695, 574434, 611100, 638260, 683850, 797825, 820620, 957390, 1025775, 1148868, 1367700, 1436085, 1595650, 1914780, 2051550, 2393475, 2872170, 3191300, 4103100, 4786950, 5744340, 7180425, 9573900, 14360850, 28721700]

約数ペア:

[(1, 28721700), (2, 14360850), (3, 9573900), (4, 7180425), (5, 5744340), (6, 4786950), (7, 4103100), (9, 3191300), (10, 2872170), (12, 2393475), (14, 2051550), (15, 1914780), (18, 1595650), (20, 1436085), (21, 1367700), (25, 1148868), (28, 1025775), (30, 957390), (35, 820620), (36, 797825), (42, 683850), (45, 638260), (47, 611100), (50, 574434), (60, 478695), (63, 455900), (70, 410310), (75, 382956), (84, 341925), (90, 319130), (94, 305550), (97, 296100), (100, 287217), (105, 273540), (126, 227950), (140, 205155), (141, 203700), (150, 191478), (175, 164124), (180, 159565), (188, 152775), (194, 148050), (210, 136770), (225, 127652), (235, 122220), (252, 113975), (282, 101850), (291, 98700), (300, 95739), (315, 91180), (329, 87300), (350, 82062), (388, 74025), (420, 68385), (423, 67900), (450, 63826), (470, 61110), (485, 59220), (525, 54708), (564, 50925), (582, 49350), (630, 45590), (658, 43650), (679, 42300), (700, 41031), (705, 40740), (846, 33950), (873, 32900), (900, 31913), (940, 30555), (970, 29610), (987, 29100), (1050, 27354), (1164, 24675), (1175, 24444), (1260, 22795), (1316, 21825), (1358, 21150), (1410, 20370), (1455, 19740), (1575, 18236), (1645, 17460), (1692, 16975), (1746, 16450), (1940, 14805), (1974, 14550), (2037, 14100), (2100, 13677), (2115, 13580), (2350, 12222), (2425, 11844), (2716, 10575), (2820, 10185), (2910, 9870), (2961, 9700), (3150, 9118), (3290, 8730), (3395, 8460), (3492, 8225), (3525, 8148), (3948, 7275), (4074, 7050), (4230, 6790), (4365, 6580), (4559, 6300), (4700, 6111), (4850, 5922), (4935, 5820)]