80928400

素因数分解:

$2^4\times 5^2\times 7^2\times {\mathrm{4129}}^1$

素因数の和:4161

約数の個数: 90

約数和(自身を含む): 226229010

約数和(自身を除く): 145300610

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 35, 40, 49, 50, 56, 70, 80, 98, 100, 112, 140, 175, 196, 200, 245, 280, 350, 392, 400, 490, 560, 700, 784, 980, 1225, 1400, 1960, 2450, 2800, 3920, 4129, 4900, 8258, 9800, 16516, 19600, 20645, 28903, 33032, 41290, 57806, 66064, 82580, 103225, 115612, 144515, 165160, 202321, 206450, 231224, 289030, 330320, 404642, 412900, 462448, 578060, 722575, 809284, 825800, 1011605, 1156120, 1445150, 1618568, 1651600, 2023210, 2312240, 2890300, 3237136, 4046420, 5058025, 5780600, 8092840, 10116050, 11561200, 16185680, 20232100, 40464200, 80928400]

約数ペア:

[(1, 80928400), (2, 40464200), (4, 20232100), (5, 16185680), (7, 11561200), (8, 10116050), (10, 8092840), (14, 5780600), (16, 5058025), (20, 4046420), (25, 3237136), (28, 2890300), (35, 2312240), (40, 2023210), (49, 1651600), (50, 1618568), (56, 1445150), (70, 1156120), (80, 1011605), (98, 825800), (100, 809284), (112, 722575), (140, 578060), (175, 462448), (196, 412900), (200, 404642), (245, 330320), (280, 289030), (350, 231224), (392, 206450), (400, 202321), (490, 165160), (560, 144515), (700, 115612), (784, 103225), (980, 82580), (1225, 66064), (1400, 57806), (1960, 41290), (2450, 33032), (2800, 28903), (3920, 20645), (4129, 19600), (4900, 16516), (8258, 9800)]