218680140

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{74381}}^1$

素因数の和:74407

約数の個数: 72

約数和(自身を含む): 712282032

約数和(自身を除く): 493601892

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 84, 98, 105, 140, 147, 196, 210, 245, 294, 420, 490, 588, 735, 980, 1470, 2940, 74381, 148762, 223143, 297524, 371905, 446286, 520667, 743810, 892572, 1041334, 1115715, 1487620, 1562001, 2082668, 2231430, 2603335, 3124002, 3644669, 4462860, 5206670, 6248004, 7289338, 7810005, 10413340, 10934007, 14578676, 15620010, 18223345, 21868014, 31240020, 36446690, 43736028, 54670035, 72893380, 109340070, 218680140]

約数ペア:

[(1, 218680140), (2, 109340070), (3, 72893380), (4, 54670035), (5, 43736028), (6, 36446690), (7, 31240020), (10, 21868014), (12, 18223345), (14, 15620010), (15, 14578676), (20, 10934007), (21, 10413340), (28, 7810005), (30, 7289338), (35, 6248004), (42, 5206670), (49, 4462860), (60, 3644669), (70, 3124002), (84, 2603335), (98, 2231430), (105, 2082668), (140, 1562001), (147, 1487620), (196, 1115715), (210, 1041334), (245, 892572), (294, 743810), (420, 520667), (490, 446286), (588, 371905), (735, 297524), (980, 223143), (1470, 148762), (2940, 74381)]