279430900

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{163}}^1$

素因数の和:294

約数の個数: 144

約数和(自身を含む): 728842240

約数和(自身を除く): 449411340

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 31, 35, 50, 62, 70, 79, 100, 124, 140, 155, 158, 163, 175, 217, 310, 316, 326, 350, 395, 434, 553, 620, 652, 700, 775, 790, 815, 868, 1085, 1106, 1141, 1550, 1580, 1630, 1975, 2170, 2212, 2282, 2449, 2765, 3100, 3260, 3950, 4075, 4340, 4564, 4898, 5053, 5425, 5530, 5705, 7900, 8150, 9796, 10106, 10850, 11060, 11410, 12245, 12877, 13825, 16300, 17143, 20212, 21700, 22820, 24490, 25265, 25754, 27650, 28525, 34286, 35371, 48980, 50530, 51508, 55300, 57050, 61225, 64385, 68572, 70742, 85715, 90139, 101060, 114100, 122450, 126325, 128770, 141484, 171430, 176855, 180278, 244900, 252650, 257540, 321925, 342860, 353710, 360556, 399187, 428575, 450695, 505300, 643850, 707420, 798374, 857150, 884275, 901390, 1287700, 1596748, 1714300, 1768550, 1802780, 1995935, 2253475, 2794309, 3537100, 3991870, 4506950, 5588618, 7983740, 9013900, 9979675, 11177236, 13971545, 19959350, 27943090, 39918700, 55886180, 69857725, 139715450, 279430900]

約数ペア:

[(1, 279430900), (2, 139715450), (4, 69857725), (5, 55886180), (7, 39918700), (10, 27943090), (14, 19959350), (20, 13971545), (25, 11177236), (28, 9979675), (31, 9013900), (35, 7983740), (50, 5588618), (62, 4506950), (70, 3991870), (79, 3537100), (100, 2794309), (124, 2253475), (140, 1995935), (155, 1802780), (158, 1768550), (163, 1714300), (175, 1596748), (217, 1287700), (310, 901390), (316, 884275), (326, 857150), (350, 798374), (395, 707420), (434, 643850), (553, 505300), (620, 450695), (652, 428575), (700, 399187), (775, 360556), (790, 353710), (815, 342860), (868, 321925), (1085, 257540), (1106, 252650), (1141, 244900), (1550, 180278), (1580, 176855), (1630, 171430), (1975, 141484), (2170, 128770), (2212, 126325), (2282, 122450), (2449, 114100), (2765, 101060), (3100, 90139), (3260, 85715), (3950, 70742), (4075, 68572), (4340, 64385), (4564, 61225), (4898, 57050), (5053, 55300), (5425, 51508), (5530, 50530), (5705, 48980), (7900, 35371), (8150, 34286), (9796, 28525), (10106, 27650), (10850, 25754), (11060, 25265), (11410, 24490), (12245, 22820), (12877, 21700), (13825, 20212), (16300, 17143)]