25857520

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^2\times {\mathrm{47}}^1$

素因数の和:119

約数の個数: 120

約数和(自身を含む): 69120576

約数和(自身を除く): 43263056

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 23, 26, 40, 46, 47, 52, 65, 80, 92, 94, 104, 115, 130, 184, 188, 208, 230, 235, 260, 299, 368, 376, 460, 470, 520, 529, 598, 611, 752, 920, 940, 1040, 1058, 1081, 1196, 1222, 1495, 1840, 1880, 2116, 2162, 2392, 2444, 2645, 2990, 3055, 3760, 4232, 4324, 4784, 4888, 5290, 5405, 5980, 6110, 6877, 8464, 8648, 9776, 10580, 10810, 11960, 12220, 13754, 14053, 17296, 21160, 21620, 23920, 24440, 24863, 27508, 28106, 34385, 42320, 43240, 48880, 49726, 55016, 56212, 68770, 70265, 86480, 99452, 110032, 112424, 124315, 137540, 140530, 198904, 224848, 248630, 275080, 281060, 323219, 397808, 497260, 550160, 562120, 646438, 994520, 1124240, 1292876, 1616095, 1989040, 2585752, 3232190, 5171504, 6464380, 12928760, 25857520]

約数ペア:

[(1, 25857520), (2, 12928760), (4, 6464380), (5, 5171504), (8, 3232190), (10, 2585752), (13, 1989040), (16, 1616095), (20, 1292876), (23, 1124240), (26, 994520), (40, 646438), (46, 562120), (47, 550160), (52, 497260), (65, 397808), (80, 323219), (92, 281060), (94, 275080), (104, 248630), (115, 224848), (130, 198904), (184, 140530), (188, 137540), (208, 124315), (230, 112424), (235, 110032), (260, 99452), (299, 86480), (368, 70265), (376, 68770), (460, 56212), (470, 55016), (520, 49726), (529, 48880), (598, 43240), (611, 42320), (752, 34385), (920, 28106), (940, 27508), (1040, 24863), (1058, 24440), (1081, 23920), (1196, 21620), (1222, 21160), (1495, 17296), (1840, 14053), (1880, 13754), (2116, 12220), (2162, 11960), (2392, 10810), (2444, 10580), (2645, 9776), (2990, 8648), (3055, 8464), (3760, 6877), (4232, 6110), (4324, 5980), (4784, 5405), (4888, 5290)]