1280454980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{113}}^1\times {\mathrm{2791}}^1$

素因数の和:2949

約数の個数: 96

約数和(自身を含む): 3208343040

約数和(自身を除く): 1927888060

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 29, 35, 58, 70, 113, 116, 140, 145, 203, 226, 290, 406, 452, 565, 580, 791, 812, 1015, 1130, 1582, 2030, 2260, 2791, 3164, 3277, 3955, 4060, 5582, 6554, 7910, 11164, 13108, 13955, 15820, 16385, 19537, 22939, 27910, 32770, 39074, 45878, 55820, 65540, 78148, 80939, 91756, 97685, 114695, 161878, 195370, 229390, 315383, 323756, 390740, 404695, 458780, 566573, 630766, 809390, 1133146, 1261532, 1576915, 1618780, 2207681, 2266292, 2832865, 3153830, 4415362, 5665730, 6307660, 8830724, 9146107, 11038405, 11331460, 18292214, 22076810, 36584428, 44153620, 45730535, 64022749, 91461070, 128045498, 182922140, 256090996, 320113745, 640227490, 1280454980]

約数ペア:

[(1, 1280454980), (2, 640227490), (4, 320113745), (5, 256090996), (7, 182922140), (10, 128045498), (14, 91461070), (20, 64022749), (28, 45730535), (29, 44153620), (35, 36584428), (58, 22076810), (70, 18292214), (113, 11331460), (116, 11038405), (140, 9146107), (145, 8830724), (203, 6307660), (226, 5665730), (290, 4415362), (406, 3153830), (452, 2832865), (565, 2266292), (580, 2207681), (791, 1618780), (812, 1576915), (1015, 1261532), (1130, 1133146), (1582, 809390), (2030, 630766), (2260, 566573), (2791, 458780), (3164, 404695), (3277, 390740), (3955, 323756), (4060, 315383), (5582, 229390), (6554, 195370), (7910, 161878), (11164, 114695), (13108, 97685), (13955, 91756), (15820, 80939), (16385, 78148), (19537, 65540), (22939, 55820), (27910, 45878), (32770, 39074)]