212821720

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{271}}^1\times {\mathrm{677}}^1$

素因数の和:988

約数の個数: 64

約数和(自身を含む): 497923200

約数和(自身を除く): 285101480

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 58, 116, 145, 232, 271, 290, 542, 580, 677, 1084, 1160, 1354, 1355, 2168, 2708, 2710, 3385, 5416, 5420, 6770, 7859, 10840, 13540, 15718, 19633, 27080, 31436, 39266, 39295, 62872, 78532, 78590, 98165, 157064, 157180, 183467, 196330, 314360, 366934, 392660, 733868, 785320, 917335, 1467736, 1834670, 3669340, 5320543, 7338680, 10641086, 21282172, 26602715, 42564344, 53205430, 106410860, 212821720]

約数ペア:

[(1, 212821720), (2, 106410860), (4, 53205430), (5, 42564344), (8, 26602715), (10, 21282172), (20, 10641086), (29, 7338680), (40, 5320543), (58, 3669340), (116, 1834670), (145, 1467736), (232, 917335), (271, 785320), (290, 733868), (542, 392660), (580, 366934), (677, 314360), (1084, 196330), (1160, 183467), (1354, 157180), (1355, 157064), (2168, 98165), (2708, 78590), (2710, 78532), (3385, 62872), (5416, 39295), (5420, 39266), (6770, 31436), (7859, 27080), (10840, 19633), (13540, 15718)]