25288900

素因数分解:

$2^2\times 5^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{397}}^1$

素因数の和:438

約数の個数: 108

約数和(自身を含む): 68920068

約数和(自身を除く): 43631168

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 25, 26, 28, 35, 49, 50, 52, 65, 70, 91, 98, 100, 130, 140, 175, 182, 196, 245, 260, 325, 350, 364, 397, 455, 490, 637, 650, 700, 794, 910, 980, 1225, 1274, 1300, 1588, 1820, 1985, 2275, 2450, 2548, 2779, 3185, 3970, 4550, 4900, 5161, 5558, 6370, 7940, 9100, 9925, 10322, 11116, 12740, 13895, 15925, 19453, 19850, 20644, 25805, 27790, 31850, 36127, 38906, 39700, 51610, 55580, 63700, 69475, 72254, 77812, 97265, 103220, 129025, 138950, 144508, 180635, 194530, 252889, 258050, 277900, 361270, 389060, 486325, 505778, 516100, 722540, 903175, 972650, 1011556, 1264445, 1806350, 1945300, 2528890, 3612700, 5057780, 6322225, 12644450, 25288900]

約数ペア:

[(1, 25288900), (2, 12644450), (4, 6322225), (5, 5057780), (7, 3612700), (10, 2528890), (13, 1945300), (14, 1806350), (20, 1264445), (25, 1011556), (26, 972650), (28, 903175), (35, 722540), (49, 516100), (50, 505778), (52, 486325), (65, 389060), (70, 361270), (91, 277900), (98, 258050), (100, 252889), (130, 194530), (140, 180635), (175, 144508), (182, 138950), (196, 129025), (245, 103220), (260, 97265), (325, 77812), (350, 72254), (364, 69475), (397, 63700), (455, 55580), (490, 51610), (637, 39700), (650, 38906), (700, 36127), (794, 31850), (910, 27790), (980, 25805), (1225, 20644), (1274, 19850), (1300, 19453), (1588, 15925), (1820, 13895), (1985, 12740), (2275, 11116), (2450, 10322), (2548, 9925), (2779, 9100), (3185, 7940), (3970, 6370), (4550, 5558), (4900, 5161)]