18931080

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{727}}^1$

素因数の和:779

約数の個数: 128

約数和(自身を含む): 67092480

約数和(自身を除く): 48161400

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 31, 35, 40, 42, 56, 60, 62, 70, 84, 93, 105, 120, 124, 140, 155, 168, 186, 210, 217, 248, 280, 310, 372, 420, 434, 465, 620, 651, 727, 744, 840, 868, 930, 1085, 1240, 1302, 1454, 1736, 1860, 2170, 2181, 2604, 2908, 3255, 3635, 3720, 4340, 4362, 5089, 5208, 5816, 6510, 7270, 8680, 8724, 10178, 10905, 13020, 14540, 15267, 17448, 20356, 21810, 22537, 25445, 26040, 29080, 30534, 40712, 43620, 45074, 50890, 61068, 67611, 76335, 87240, 90148, 101780, 112685, 122136, 135222, 152670, 157759, 180296, 203560, 225370, 270444, 305340, 315518, 338055, 450740, 473277, 540888, 610680, 631036, 676110, 788795, 901480, 946554, 1262072, 1352220, 1577590, 1893108, 2366385, 2704440, 3155180, 3786216, 4732770, 6310360, 9465540, 18931080]

約数ペア:

[(1, 18931080), (2, 9465540), (3, 6310360), (4, 4732770), (5, 3786216), (6, 3155180), (7, 2704440), (8, 2366385), (10, 1893108), (12, 1577590), (14, 1352220), (15, 1262072), (20, 946554), (21, 901480), (24, 788795), (28, 676110), (30, 631036), (31, 610680), (35, 540888), (40, 473277), (42, 450740), (56, 338055), (60, 315518), (62, 305340), (70, 270444), (84, 225370), (93, 203560), (105, 180296), (120, 157759), (124, 152670), (140, 135222), (155, 122136), (168, 112685), (186, 101780), (210, 90148), (217, 87240), (248, 76335), (280, 67611), (310, 61068), (372, 50890), (420, 45074), (434, 43620), (465, 40712), (620, 30534), (651, 29080), (727, 26040), (744, 25445), (840, 22537), (868, 21810), (930, 20356), (1085, 17448), (1240, 15267), (1302, 14540), (1454, 13020), (1736, 10905), (1860, 10178), (2170, 8724), (2181, 8680), (2604, 7270), (2908, 6510), (3255, 5816), (3635, 5208), (3720, 5089), (4340, 4362)]