206821040

素因数分解:

$2^4\times 5^1\times {\mathrm{29}}^1\times {\mathrm{239}}^1\times {\mathrm{373}}^1$

素因数の和:654

約数の個数: 80

約数和(自身を含む): 500860800

約数和(自身を除く): 294039760

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 40, 58, 80, 116, 145, 232, 239, 290, 373, 464, 478, 580, 746, 956, 1160, 1195, 1492, 1865, 1912, 2320, 2390, 2984, 3730, 3824, 4780, 5968, 6931, 7460, 9560, 10817, 13862, 14920, 19120, 21634, 27724, 29840, 34655, 43268, 54085, 55448, 69310, 86536, 89147, 108170, 110896, 138620, 173072, 178294, 216340, 277240, 356588, 432680, 445735, 554480, 713176, 865360, 891470, 1426352, 1782940, 2585263, 3565880, 5170526, 7131760, 10341052, 12926315, 20682104, 25852630, 41364208, 51705260, 103410520, 206821040]

約数ペア:

[(1, 206821040), (2, 103410520), (4, 51705260), (5, 41364208), (8, 25852630), (10, 20682104), (16, 12926315), (20, 10341052), (29, 7131760), (40, 5170526), (58, 3565880), (80, 2585263), (116, 1782940), (145, 1426352), (232, 891470), (239, 865360), (290, 713176), (373, 554480), (464, 445735), (478, 432680), (580, 356588), (746, 277240), (956, 216340), (1160, 178294), (1195, 173072), (1492, 138620), (1865, 110896), (1912, 108170), (2320, 89147), (2390, 86536), (2984, 69310), (3730, 55448), (3824, 54085), (4780, 43268), (5968, 34655), (6931, 29840), (7460, 27724), (9560, 21634), (10817, 19120), (13862, 14920)]