254478420

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{1453}}^1$

素因数の和:1614

約数の個数: 144

約数和(自身を含む): 889150080

約数和(自身を除く): 634671660

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 139, 140, 180, 210, 252, 278, 315, 417, 420, 556, 630, 695, 834, 973, 1251, 1260, 1390, 1453, 1668, 1946, 2085, 2502, 2780, 2906, 2919, 3892, 4170, 4359, 4865, 5004, 5812, 5838, 6255, 7265, 8340, 8718, 8757, 9730, 10171, 11676, 12510, 13077, 14530, 14595, 17436, 17514, 19460, 20342, 21795, 25020, 26154, 29060, 29190, 30513, 35028, 40684, 43590, 43785, 50855, 52308, 58380, 61026, 65385, 87180, 87570, 91539, 101710, 122052, 130770, 152565, 175140, 183078, 201967, 203420, 261540, 305130, 366156, 403934, 457695, 605901, 610260, 807868, 915390, 1009835, 1211802, 1413769, 1817703, 1830780, 2019670, 2423604, 2827538, 3029505, 3635406, 4039340, 4241307, 5655076, 6059010, 7068845, 7270812, 8482614, 9088515, 12118020, 12723921, 14137690, 16965228, 18177030, 21206535, 25447842, 28275380, 36354060, 42413070, 50895684, 63619605, 84826140, 127239210, 254478420]

約数ペア:

[(1, 254478420), (2, 127239210), (3, 84826140), (4, 63619605), (5, 50895684), (6, 42413070), (7, 36354060), (9, 28275380), (10, 25447842), (12, 21206535), (14, 18177030), (15, 16965228), (18, 14137690), (20, 12723921), (21, 12118020), (28, 9088515), (30, 8482614), (35, 7270812), (36, 7068845), (42, 6059010), (45, 5655076), (60, 4241307), (63, 4039340), (70, 3635406), (84, 3029505), (90, 2827538), (105, 2423604), (126, 2019670), (139, 1830780), (140, 1817703), (180, 1413769), (210, 1211802), (252, 1009835), (278, 915390), (315, 807868), (417, 610260), (420, 605901), (556, 457695), (630, 403934), (695, 366156), (834, 305130), (973, 261540), (1251, 203420), (1260, 201967), (1390, 183078), (1453, 175140), (1668, 152565), (1946, 130770), (2085, 122052), (2502, 101710), (2780, 91539), (2906, 87570), (2919, 87180), (3892, 65385), (4170, 61026), (4359, 58380), (4865, 52308), (5004, 50855), (5812, 43785), (5838, 43590), (6255, 40684), (7265, 35028), (8340, 30513), (8718, 29190), (8757, 29060), (9730, 26154), (10171, 25020), (11676, 21795), (12510, 20342), (13077, 19460), (14530, 17514), (14595, 17436)]