28876540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{1103}}^1$

素因数の和:1147

約数の個数: 96

約数和(自身を含む): 80123904

約数和(自身を除く): 51247364

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 17, 20, 22, 28, 34, 35, 44, 55, 68, 70, 77, 85, 110, 119, 140, 154, 170, 187, 220, 238, 308, 340, 374, 385, 476, 595, 748, 770, 935, 1103, 1190, 1309, 1540, 1870, 2206, 2380, 2618, 3740, 4412, 5236, 5515, 6545, 7721, 11030, 12133, 13090, 15442, 18751, 22060, 24266, 26180, 30884, 37502, 38605, 48532, 60665, 75004, 77210, 84931, 93755, 121330, 131257, 154420, 169862, 187510, 206261, 242660, 262514, 339724, 375020, 412522, 424655, 525028, 656285, 825044, 849310, 1031305, 1312570, 1443827, 1698620, 2062610, 2625140, 2887654, 4125220, 5775308, 7219135, 14438270, 28876540]

約数ペア:

[(1, 28876540), (2, 14438270), (4, 7219135), (5, 5775308), (7, 4125220), (10, 2887654), (11, 2625140), (14, 2062610), (17, 1698620), (20, 1443827), (22, 1312570), (28, 1031305), (34, 849310), (35, 825044), (44, 656285), (55, 525028), (68, 424655), (70, 412522), (77, 375020), (85, 339724), (110, 262514), (119, 242660), (140, 206261), (154, 187510), (170, 169862), (187, 154420), (220, 131257), (238, 121330), (308, 93755), (340, 84931), (374, 77210), (385, 75004), (476, 60665), (595, 48532), (748, 38605), (770, 37502), (935, 30884), (1103, 26180), (1190, 24266), (1309, 22060), (1540, 18751), (1870, 15442), (2206, 13090), (2380, 12133), (2618, 11030), (3740, 7721), (4412, 6545), (5236, 5515)]