20834520

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{1459}}^1$

素因数の和:1497

約数の個数: 128

約数和(自身を含む): 75686400

約数和(自身を除く): 54851880

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 17, 20, 21, 24, 28, 30, 34, 35, 40, 42, 51, 56, 60, 68, 70, 84, 85, 102, 105, 119, 120, 136, 140, 168, 170, 204, 210, 238, 255, 280, 340, 357, 408, 420, 476, 510, 595, 680, 714, 840, 952, 1020, 1190, 1428, 1459, 1785, 2040, 2380, 2856, 2918, 3570, 4377, 4760, 5836, 7140, 7295, 8754, 10213, 11672, 14280, 14590, 17508, 20426, 21885, 24803, 29180, 30639, 35016, 40852, 43770, 49606, 51065, 58360, 61278, 74409, 81704, 87540, 99212, 102130, 122556, 124015, 148818, 153195, 173621, 175080, 198424, 204260, 245112, 248030, 297636, 306390, 347242, 372045, 408520, 496060, 520863, 595272, 612780, 694484, 744090, 868105, 992120, 1041726, 1225560, 1388968, 1488180, 1736210, 2083452, 2604315, 2976360, 3472420, 4166904, 5208630, 6944840, 10417260, 20834520]

約数ペア:

[(1, 20834520), (2, 10417260), (3, 6944840), (4, 5208630), (5, 4166904), (6, 3472420), (7, 2976360), (8, 2604315), (10, 2083452), (12, 1736210), (14, 1488180), (15, 1388968), (17, 1225560), (20, 1041726), (21, 992120), (24, 868105), (28, 744090), (30, 694484), (34, 612780), (35, 595272), (40, 520863), (42, 496060), (51, 408520), (56, 372045), (60, 347242), (68, 306390), (70, 297636), (84, 248030), (85, 245112), (102, 204260), (105, 198424), (119, 175080), (120, 173621), (136, 153195), (140, 148818), (168, 124015), (170, 122556), (204, 102130), (210, 99212), (238, 87540), (255, 81704), (280, 74409), (340, 61278), (357, 58360), (408, 51065), (420, 49606), (476, 43770), (510, 40852), (595, 35016), (680, 30639), (714, 29180), (840, 24803), (952, 21885), (1020, 20426), (1190, 17508), (1428, 14590), (1459, 14280), (1785, 11672), (2040, 10213), (2380, 8754), (2856, 7295), (2918, 7140), (3570, 5836), (4377, 4760)]