836456780

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{66491}}^1$

素因数の和:66554

約数の個数: 48

約数和(自身を含む): 1910182176

約数和(自身を除く): 1073725396

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 37, 68, 74, 85, 148, 170, 185, 340, 370, 629, 740, 1258, 2516, 3145, 6290, 12580, 66491, 132982, 265964, 332455, 664910, 1130347, 1329820, 2260694, 2460167, 4521388, 4920334, 5651735, 9840668, 11303470, 12300835, 22606940, 24601670, 41822839, 49203340, 83645678, 167291356, 209114195, 418228390, 836456780]

約数ペア:

[(1, 836456780), (2, 418228390), (4, 209114195), (5, 167291356), (10, 83645678), (17, 49203340), (20, 41822839), (34, 24601670), (37, 22606940), (68, 12300835), (74, 11303470), (85, 9840668), (148, 5651735), (170, 4920334), (185, 4521388), (340, 2460167), (370, 2260694), (629, 1329820), (740, 1130347), (1258, 664910), (2516, 332455), (3145, 265964), (6290, 132982), (12580, 66491)]