19689075

素因数分解:

$3^5\times 5^2\times 7^1\times {\mathrm{463}}^1$

素因数の和:495

約数の個数: 72

約数和(自身を含む): 41886208

約数和(自身を除く): 22197133

約数列:

[1, 3, 5, 7, 9, 15, 21, 25, 27, 35, 45, 63, 75, 81, 105, 135, 175, 189, 225, 243, 315, 405, 463, 525, 567, 675, 945, 1215, 1389, 1575, 1701, 2025, 2315, 2835, 3241, 4167, 4725, 6075, 6945, 8505, 9723, 11575, 12501, 14175, 16205, 20835, 29169, 34725, 37503, 42525, 48615, 62505, 81025, 87507, 104175, 112509, 145845, 187515, 243075, 262521, 312525, 437535, 562545, 729225, 787563, 937575, 1312605, 2187675, 2812725, 3937815, 6563025, 19689075]

約数ペア:

[(1, 19689075), (3, 6563025), (5, 3937815), (7, 2812725), (9, 2187675), (15, 1312605), (21, 937575), (25, 787563), (27, 729225), (35, 562545), (45, 437535), (63, 312525), (75, 262521), (81, 243075), (105, 187515), (135, 145845), (175, 112509), (189, 104175), (225, 87507), (243, 81025), (315, 62505), (405, 48615), (463, 42525), (525, 37503), (567, 34725), (675, 29169), (945, 20835), (1215, 16205), (1389, 14175), (1575, 12501), (1701, 11575), (2025, 9723), (2315, 8505), (2835, 6945), (3241, 6075), (4167, 4725)]