280807828

素因数分解:

$2^2\times 7^2\times {\mathrm{23}}^1\times {\mathrm{167}}^1\times {\mathrm{373}}^1$

素因数の和:581

約数の個数: 72

約数和(自身を含む): 601679232

約数和(自身を除く): 320871404

約数列:

[1, 2, 4, 7, 14, 23, 28, 46, 49, 92, 98, 161, 167, 196, 322, 334, 373, 644, 668, 746, 1127, 1169, 1492, 2254, 2338, 2611, 3841, 4508, 4676, 5222, 7682, 8183, 8579, 10444, 15364, 16366, 17158, 18277, 26887, 32732, 34316, 36554, 53774, 60053, 62291, 73108, 107548, 120106, 124582, 188209, 240212, 249164, 376418, 420371, 436037, 752836, 840742, 872074, 1432693, 1681484, 1744148, 2865386, 3052259, 5730772, 6104518, 10028851, 12209036, 20057702, 40115404, 70201957, 140403914, 280807828]

約数ペア:

[(1, 280807828), (2, 140403914), (4, 70201957), (7, 40115404), (14, 20057702), (23, 12209036), (28, 10028851), (46, 6104518), (49, 5730772), (92, 3052259), (98, 2865386), (161, 1744148), (167, 1681484), (196, 1432693), (322, 872074), (334, 840742), (373, 752836), (644, 436037), (668, 420371), (746, 376418), (1127, 249164), (1169, 240212), (1492, 188209), (2254, 124582), (2338, 120106), (2611, 107548), (3841, 73108), (4508, 62291), (4676, 60053), (5222, 53774), (7682, 36554), (8183, 34316), (8579, 32732), (10444, 26887), (15364, 18277), (16366, 17158)]