8130780

素因数分解:

$2^2\times 3^5\times 5^1\times 7^1\times {\mathrm{239}}^1$

素因数の和:270

約数の個数: 144

約数和(自身を含む): 29352960

約数和(自身を除く): 21222180

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 27, 28, 30, 35, 36, 42, 45, 54, 60, 63, 70, 81, 84, 90, 105, 108, 126, 135, 140, 162, 180, 189, 210, 239, 243, 252, 270, 315, 324, 378, 405, 420, 478, 486, 540, 567, 630, 717, 756, 810, 945, 956, 972, 1134, 1195, 1215, 1260, 1434, 1620, 1673, 1701, 1890, 2151, 2268, 2390, 2430, 2835, 2868, 3346, 3402, 3585, 3780, 4302, 4780, 4860, 5019, 5670, 6453, 6692, 6804, 7170, 8365, 8505, 8604, 10038, 10755, 11340, 12906, 14340, 15057, 16730, 17010, 19359, 20076, 21510, 25095, 25812, 30114, 32265, 33460, 34020, 38718, 43020, 45171, 50190, 58077, 60228, 64530, 75285, 77436, 90342, 96795, 100380, 116154, 129060, 135513, 150570, 180684, 193590, 225855, 232308, 271026, 290385, 301140, 387180, 406539, 451710, 542052, 580770, 677565, 813078, 903420, 1161540, 1355130, 1626156, 2032695, 2710260, 4065390, 8130780]

約数ペア:

[(1, 8130780), (2, 4065390), (3, 2710260), (4, 2032695), (5, 1626156), (6, 1355130), (7, 1161540), (9, 903420), (10, 813078), (12, 677565), (14, 580770), (15, 542052), (18, 451710), (20, 406539), (21, 387180), (27, 301140), (28, 290385), (30, 271026), (35, 232308), (36, 225855), (42, 193590), (45, 180684), (54, 150570), (60, 135513), (63, 129060), (70, 116154), (81, 100380), (84, 96795), (90, 90342), (105, 77436), (108, 75285), (126, 64530), (135, 60228), (140, 58077), (162, 50190), (180, 45171), (189, 43020), (210, 38718), (239, 34020), (243, 33460), (252, 32265), (270, 30114), (315, 25812), (324, 25095), (378, 21510), (405, 20076), (420, 19359), (478, 17010), (486, 16730), (540, 15057), (567, 14340), (630, 12906), (717, 11340), (756, 10755), (810, 10038), (945, 8604), (956, 8505), (972, 8365), (1134, 7170), (1195, 6804), (1215, 6692), (1260, 6453), (1434, 5670), (1620, 5019), (1673, 4860), (1701, 4780), (1890, 4302), (2151, 3780), (2268, 3585), (2390, 3402), (2430, 3346), (2835, 2868)]