1806840

素因数分解:

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

素因数の和:266

約数の個数: 128

約数和(自身を含む): 6912000

約数和(自身を除く): 5105160

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 27, 28, 30, 35, 36, 40, 42, 45, 54, 56, 60, 63, 70, 72, 84, 90, 105, 108, 120, 126, 135, 140, 168, 180, 189, 210, 216, 239, 252, 270, 280, 315, 360, 378, 420, 478, 504, 540, 630, 717, 756, 840, 945, 956, 1080, 1195, 1260, 1434, 1512, 1673, 1890, 1912, 2151, 2390, 2520, 2868, 3346, 3585, 3780, 4302, 4780, 5019, 5736, 6453, 6692, 7170, 7560, 8365, 8604, 9560, 10038, 10755, 12906, 13384, 14340, 15057, 16730, 17208, 20076, 21510, 25095, 25812, 28680, 30114, 32265, 33460, 40152, 43020, 45171, 50190, 51624, 60228, 64530, 66920, 75285, 86040, 90342, 100380, 120456, 129060, 150570, 180684, 200760, 225855, 258120, 301140, 361368, 451710, 602280, 903420, 1806840]

約数ペア:

[(1, 1806840), (2, 903420), (3, 602280), (4, 451710), (5, 361368), (6, 301140), (7, 258120), (8, 225855), (9, 200760), (10, 180684), (12, 150570), (14, 129060), (15, 120456), (18, 100380), (20, 90342), (21, 86040), (24, 75285), (27, 66920), (28, 64530), (30, 60228), (35, 51624), (36, 50190), (40, 45171), (42, 43020), (45, 40152), (54, 33460), (56, 32265), (60, 30114), (63, 28680), (70, 25812), (72, 25095), (84, 21510), (90, 20076), (105, 17208), (108, 16730), (120, 15057), (126, 14340), (135, 13384), (140, 12906), (168, 10755), (180, 10038), (189, 9560), (210, 8604), (216, 8365), (239, 7560), (252, 7170), (270, 6692), (280, 6453), (315, 5736), (360, 5019), (378, 4780), (420, 4302), (478, 3780), (504, 3585), (540, 3346), (630, 2868), (717, 2520), (756, 2390), (840, 2151), (945, 1912), (956, 1890), (1080, 1673), (1195, 1512), (1260, 1434)]