77581840

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{109}}^1$

素因数の和:201

約数の個数: 160

約数和(自身を含む): 219985920

約数和(自身を除く): 142404080

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 35, 40, 41, 56, 62, 70, 80, 82, 109, 112, 124, 140, 155, 164, 205, 217, 218, 248, 280, 287, 310, 328, 410, 434, 436, 496, 545, 560, 574, 620, 656, 763, 820, 868, 872, 1085, 1090, 1148, 1240, 1271, 1435, 1526, 1640, 1736, 1744, 2170, 2180, 2296, 2480, 2542, 2870, 3052, 3280, 3379, 3472, 3815, 4340, 4360, 4469, 4592, 5084, 5740, 6104, 6355, 6758, 7630, 8680, 8720, 8897, 8938, 10168, 11480, 12208, 12710, 13516, 15260, 16895, 17360, 17794, 17876, 20336, 22345, 22960, 23653, 25420, 27032, 30520, 31283, 33790, 35588, 35752, 44485, 44690, 47306, 50840, 54064, 61040, 62566, 67580, 71176, 71504, 88970, 89380, 94612, 101680, 118265, 125132, 135160, 138539, 142352, 156415, 177940, 178760, 189224, 236530, 250264, 270320, 277078, 312830, 355880, 357520, 378448, 473060, 500528, 554156, 625660, 692695, 711760, 946120, 969773, 1108312, 1251320, 1385390, 1892240, 1939546, 2216624, 2502640, 2770780, 3879092, 4848865, 5541560, 7758184, 9697730, 11083120, 15516368, 19395460, 38790920, 77581840]

約数ペア:

[(1, 77581840), (2, 38790920), (4, 19395460), (5, 15516368), (7, 11083120), (8, 9697730), (10, 7758184), (14, 5541560), (16, 4848865), (20, 3879092), (28, 2770780), (31, 2502640), (35, 2216624), (40, 1939546), (41, 1892240), (56, 1385390), (62, 1251320), (70, 1108312), (80, 969773), (82, 946120), (109, 711760), (112, 692695), (124, 625660), (140, 554156), (155, 500528), (164, 473060), (205, 378448), (217, 357520), (218, 355880), (248, 312830), (280, 277078), (287, 270320), (310, 250264), (328, 236530), (410, 189224), (434, 178760), (436, 177940), (496, 156415), (545, 142352), (560, 138539), (574, 135160), (620, 125132), (656, 118265), (763, 101680), (820, 94612), (868, 89380), (872, 88970), (1085, 71504), (1090, 71176), (1148, 67580), (1240, 62566), (1271, 61040), (1435, 54064), (1526, 50840), (1640, 47306), (1736, 44690), (1744, 44485), (2170, 35752), (2180, 35588), (2296, 33790), (2480, 31283), (2542, 30520), (2870, 27032), (3052, 25420), (3280, 23653), (3379, 22960), (3472, 22345), (3815, 20336), (4340, 17876), (4360, 17794), (4469, 17360), (4592, 16895), (5084, 15260), (5740, 13516), (6104, 12710), (6355, 12208), (6758, 11480), (7630, 10168), (8680, 8938), (8720, 8897)]