90265840

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{23027}}^1$

素因数の和:23054

約数の個数: 60

約数和(自身を含む): 244142856

約数和(自身を除く): 153877016

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 56, 70, 80, 98, 112, 140, 196, 245, 280, 392, 490, 560, 784, 980, 1960, 3920, 23027, 46054, 92108, 115135, 161189, 184216, 230270, 322378, 368432, 460540, 644756, 805945, 921080, 1128323, 1289512, 1611890, 1842160, 2256646, 2579024, 3223780, 4513292, 5641615, 6447560, 9026584, 11283230, 12895120, 18053168, 22566460, 45132920, 90265840]

約数ペア:

[(1, 90265840), (2, 45132920), (4, 22566460), (5, 18053168), (7, 12895120), (8, 11283230), (10, 9026584), (14, 6447560), (16, 5641615), (20, 4513292), (28, 3223780), (35, 2579024), (40, 2256646), (49, 1842160), (56, 1611890), (70, 1289512), (80, 1128323), (98, 921080), (112, 805945), (140, 644756), (196, 460540), (245, 368432), (280, 322378), (392, 230270), (490, 184216), (560, 161189), (784, 115135), (980, 92108), (1960, 46054), (3920, 23027)]