65281720

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{1753}}^1$

素因数の和:1797

約数の個数: 96

約数和(自身を含む): 179960400

約数和(自身を除く): 114678680

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 19, 20, 28, 35, 38, 40, 49, 56, 70, 76, 95, 98, 133, 140, 152, 190, 196, 245, 266, 280, 380, 392, 490, 532, 665, 760, 931, 980, 1064, 1330, 1753, 1862, 1960, 2660, 3506, 3724, 4655, 5320, 7012, 7448, 8765, 9310, 12271, 14024, 17530, 18620, 24542, 33307, 35060, 37240, 49084, 61355, 66614, 70120, 85897, 98168, 122710, 133228, 166535, 171794, 233149, 245420, 266456, 333070, 343588, 429485, 466298, 490840, 666140, 687176, 858970, 932596, 1165745, 1332280, 1632043, 1717940, 1865192, 2331490, 3264086, 3435880, 4662980, 6528172, 8160215, 9325960, 13056344, 16320430, 32640860, 65281720]

約数ペア:

[(1, 65281720), (2, 32640860), (4, 16320430), (5, 13056344), (7, 9325960), (8, 8160215), (10, 6528172), (14, 4662980), (19, 3435880), (20, 3264086), (28, 2331490), (35, 1865192), (38, 1717940), (40, 1632043), (49, 1332280), (56, 1165745), (70, 932596), (76, 858970), (95, 687176), (98, 666140), (133, 490840), (140, 466298), (152, 429485), (190, 343588), (196, 333070), (245, 266456), (266, 245420), (280, 233149), (380, 171794), (392, 166535), (490, 133228), (532, 122710), (665, 98168), (760, 85897), (931, 70120), (980, 66614), (1064, 61355), (1330, 49084), (1753, 37240), (1862, 35060), (1960, 33307), (2660, 24542), (3506, 18620), (3724, 17530), (4655, 14024), (5320, 12271), (7012, 9310), (7448, 8765)]