78561945

素因数分解:

$3^2\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{79}}^1$

素因数の和:156

約数の個数: 144

約数和(自身を含む): 179262720

約数和(自身を除く): 100700775

約数列:

[1, 3, 5, 7, 9, 11, 15, 21, 33, 35, 41, 45, 49, 55, 63, 77, 79, 99, 105, 123, 147, 165, 205, 231, 237, 245, 287, 315, 369, 385, 395, 441, 451, 495, 539, 553, 615, 693, 711, 735, 861, 869, 1155, 1185, 1353, 1435, 1617, 1659, 1845, 2009, 2205, 2255, 2583, 2607, 2695, 2765, 3157, 3239, 3465, 3555, 3871, 4059, 4305, 4345, 4851, 4977, 6027, 6083, 6765, 7821, 8085, 8295, 9471, 9717, 10045, 11613, 12915, 13035, 15785, 16195, 18081, 18249, 19355, 20295, 22099, 22673, 24255, 24885, 28413, 29151, 30135, 30415, 34839, 35629, 39105, 42581, 47355, 48585, 54747, 58065, 66297, 68019, 90405, 91245, 106887, 110495, 113365, 127743, 142065, 145755, 158711, 174195, 178145, 198891, 204057, 212905, 249403, 273735, 320661, 331485, 340095, 383229, 476133, 534435, 638715, 748209, 793555, 994455, 1020285, 1247015, 1428399, 1603305, 1745821, 1916145, 2244627, 2380665, 3741045, 5237463, 7141995, 8729105, 11223135, 15712389, 26187315, 78561945]

約数ペア:

[(1, 78561945), (3, 26187315), (5, 15712389), (7, 11223135), (9, 8729105), (11, 7141995), (15, 5237463), (21, 3741045), (33, 2380665), (35, 2244627), (41, 1916145), (45, 1745821), (49, 1603305), (55, 1428399), (63, 1247015), (77, 1020285), (79, 994455), (99, 793555), (105, 748209), (123, 638715), (147, 534435), (165, 476133), (205, 383229), (231, 340095), (237, 331485), (245, 320661), (287, 273735), (315, 249403), (369, 212905), (385, 204057), (395, 198891), (441, 178145), (451, 174195), (495, 158711), (539, 145755), (553, 142065), (615, 127743), (693, 113365), (711, 110495), (735, 106887), (861, 91245), (869, 90405), (1155, 68019), (1185, 66297), (1353, 58065), (1435, 54747), (1617, 48585), (1659, 47355), (1845, 42581), (2009, 39105), (2205, 35629), (2255, 34839), (2583, 30415), (2607, 30135), (2695, 29151), (2765, 28413), (3157, 24885), (3239, 24255), (3465, 22673), (3555, 22099), (3871, 20295), (4059, 19355), (4305, 18249), (4345, 18081), (4851, 16195), (4977, 15785), (6027, 13035), (6083, 12915), (6765, 11613), (7821, 10045), (8085, 9717), (8295, 9471)]