278302920

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19489}}^1$

素因数の和:19527

約数の個数: 128

約数和(自身を含む): 1010361600

約数和(自身を除く): 732058680

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, 1785, 2040, 2380, 2856, 3570, 4760, 7140, 14280, 19489, 38978, 58467, 77956, 97445, 116934, 136423, 155912, 194890, 233868, 272846, 292335, 331313, 389780, 409269, 467736, 545692, 584670, 662626, 682115, 779560, 818538, 993939, 1091384, 1169340, 1325252, 1364230, 1637076, 1656565, 1987878, 2046345, 2319191, 2338680, 2650504, 2728460, 3274152, 3313130, 3975756, 4092690, 4638382, 4969695, 5456920, 6626260, 6957573, 7951512, 8185380, 9276764, 9939390, 11595955, 13252520, 13915146, 16370760, 18553528, 19878780, 23191910, 27830292, 34787865, 39757560, 46383820, 55660584, 69575730, 92767640, 139151460, 278302920]

約数ペア:

[(1, 278302920), (2, 139151460), (3, 92767640), (4, 69575730), (5, 55660584), (6, 46383820), (7, 39757560), (8, 34787865), (10, 27830292), (12, 23191910), (14, 19878780), (15, 18553528), (17, 16370760), (20, 13915146), (21, 13252520), (24, 11595955), (28, 9939390), (30, 9276764), (34, 8185380), (35, 7951512), (40, 6957573), (42, 6626260), (51, 5456920), (56, 4969695), (60, 4638382), (68, 4092690), (70, 3975756), (84, 3313130), (85, 3274152), (102, 2728460), (105, 2650504), (119, 2338680), (120, 2319191), (136, 2046345), (140, 1987878), (168, 1656565), (170, 1637076), (204, 1364230), (210, 1325252), (238, 1169340), (255, 1091384), (280, 993939), (340, 818538), (357, 779560), (408, 682115), (420, 662626), (476, 584670), (510, 545692), (595, 467736), (680, 409269), (714, 389780), (840, 331313), (952, 292335), (1020, 272846), (1190, 233868), (1428, 194890), (1785, 155912), (2040, 136423), (2380, 116934), (2856, 97445), (3570, 77956), (4760, 58467), (7140, 38978), (14280, 19489)]