25161920

素因数分解:

$2^6\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{239}}^1$

素因数の和:310

約数の個数: 112

約数和(自身を含む): 70225920

約数和(自身を除く): 45064000

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 47, 56, 64, 70, 80, 94, 112, 140, 160, 188, 224, 235, 239, 280, 320, 329, 376, 448, 470, 478, 560, 658, 752, 940, 956, 1120, 1195, 1316, 1504, 1645, 1673, 1880, 1912, 2240, 2390, 2632, 3008, 3290, 3346, 3760, 3824, 4780, 5264, 6580, 6692, 7520, 7648, 8365, 9560, 10528, 11233, 13160, 13384, 15040, 15296, 16730, 19120, 21056, 22466, 26320, 26768, 33460, 38240, 44932, 52640, 53536, 56165, 66920, 76480, 78631, 89864, 105280, 107072, 112330, 133840, 157262, 179728, 224660, 267680, 314524, 359456, 393155, 449320, 535360, 629048, 718912, 786310, 898640, 1258096, 1572620, 1797280, 2516192, 3145240, 3594560, 5032384, 6290480, 12580960, 25161920]

約数ペア:

[(1, 25161920), (2, 12580960), (4, 6290480), (5, 5032384), (7, 3594560), (8, 3145240), (10, 2516192), (14, 1797280), (16, 1572620), (20, 1258096), (28, 898640), (32, 786310), (35, 718912), (40, 629048), (47, 535360), (56, 449320), (64, 393155), (70, 359456), (80, 314524), (94, 267680), (112, 224660), (140, 179728), (160, 157262), (188, 133840), (224, 112330), (235, 107072), (239, 105280), (280, 89864), (320, 78631), (329, 76480), (376, 66920), (448, 56165), (470, 53536), (478, 52640), (560, 44932), (658, 38240), (752, 33460), (940, 26768), (956, 26320), (1120, 22466), (1195, 21056), (1316, 19120), (1504, 16730), (1645, 15296), (1673, 15040), (1880, 13384), (1912, 13160), (2240, 11233), (2390, 10528), (2632, 9560), (3008, 8365), (3290, 7648), (3346, 7520), (3760, 6692), (3824, 6580), (4780, 5264)]