20097840

素因数分解:

$2^4\times 3^1\times 5^1\times 7^2\times {\mathrm{1709}}^1$

素因数の和:1739

約数の個数: 120

約数和(自身を含む): 72517680

約数和(自身を除く): 52419840

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 49, 56, 60, 70, 80, 84, 98, 105, 112, 120, 140, 147, 168, 196, 210, 240, 245, 280, 294, 336, 392, 420, 490, 560, 588, 735, 784, 840, 980, 1176, 1470, 1680, 1709, 1960, 2352, 2940, 3418, 3920, 5127, 5880, 6836, 8545, 10254, 11760, 11963, 13672, 17090, 20508, 23926, 25635, 27344, 34180, 35889, 41016, 47852, 51270, 59815, 68360, 71778, 82032, 83741, 95704, 102540, 119630, 136720, 143556, 167482, 179445, 191408, 205080, 239260, 251223, 287112, 334964, 358890, 410160, 418705, 478520, 502446, 574224, 669928, 717780, 837410, 957040, 1004892, 1256115, 1339856, 1435560, 1674820, 2009784, 2512230, 2871120, 3349640, 4019568, 5024460, 6699280, 10048920, 20097840]

約数ペア:

[(1, 20097840), (2, 10048920), (3, 6699280), (4, 5024460), (5, 4019568), (6, 3349640), (7, 2871120), (8, 2512230), (10, 2009784), (12, 1674820), (14, 1435560), (15, 1339856), (16, 1256115), (20, 1004892), (21, 957040), (24, 837410), (28, 717780), (30, 669928), (35, 574224), (40, 502446), (42, 478520), (48, 418705), (49, 410160), (56, 358890), (60, 334964), (70, 287112), (80, 251223), (84, 239260), (98, 205080), (105, 191408), (112, 179445), (120, 167482), (140, 143556), (147, 136720), (168, 119630), (196, 102540), (210, 95704), (240, 83741), (245, 82032), (280, 71778), (294, 68360), (336, 59815), (392, 51270), (420, 47852), (490, 41016), (560, 35889), (588, 34180), (735, 27344), (784, 25635), (840, 23926), (980, 20508), (1176, 17090), (1470, 13672), (1680, 11963), (1709, 11760), (1960, 10254), (2352, 8545), (2940, 6836), (3418, 5880), (3920, 5127)]