51257680

素因数分解:

$2^4\times 5^1\times {\mathrm{67}}^1\times {\mathrm{73}}^1\times {\mathrm{131}}^1$

素因数の和:284

約数の個数: 80

約数和(自身を含む): 123545664

約数和(自身を除く): 72287984

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 67, 73, 80, 131, 134, 146, 262, 268, 292, 335, 365, 524, 536, 584, 655, 670, 730, 1048, 1072, 1168, 1310, 1340, 1460, 2096, 2620, 2680, 2920, 4891, 5240, 5360, 5840, 8777, 9563, 9782, 10480, 17554, 19126, 19564, 24455, 35108, 38252, 39128, 43885, 47815, 48910, 70216, 76504, 78256, 87770, 95630, 97820, 140432, 153008, 175540, 191260, 195640, 351080, 382520, 391280, 640721, 702160, 765040, 1281442, 2562884, 3203605, 5125768, 6407210, 10251536, 12814420, 25628840, 51257680]

約数ペア:

[(1, 51257680), (2, 25628840), (4, 12814420), (5, 10251536), (8, 6407210), (10, 5125768), (16, 3203605), (20, 2562884), (40, 1281442), (67, 765040), (73, 702160), (80, 640721), (131, 391280), (134, 382520), (146, 351080), (262, 195640), (268, 191260), (292, 175540), (335, 153008), (365, 140432), (524, 97820), (536, 95630), (584, 87770), (655, 78256), (670, 76504), (730, 70216), (1048, 48910), (1072, 47815), (1168, 43885), (1310, 39128), (1340, 38252), (1460, 35108), (2096, 24455), (2620, 19564), (2680, 19126), (2920, 17554), (4891, 10480), (5240, 9782), (5360, 9563), (5840, 8777)]