210420

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{167}}^1$

素因数の和:189

約数の個数: 72

約数和(自身を含む): 733824

約数和(自身を除く): 523404

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 167, 180, 210, 252, 315, 334, 420, 501, 630, 668, 835, 1002, 1169, 1260, 1503, 1670, 2004, 2338, 2505, 3006, 3340, 3507, 4676, 5010, 5845, 6012, 7014, 7515, 10020, 10521, 11690, 14028, 15030, 17535, 21042, 23380, 30060, 35070, 42084, 52605, 70140, 105210, 210420]

約数ペア:

[(1, 210420), (2, 105210), (3, 70140), (4, 52605), (5, 42084), (6, 35070), (7, 30060), (9, 23380), (10, 21042), (12, 17535), (14, 15030), (15, 14028), (18, 11690), (20, 10521), (21, 10020), (28, 7515), (30, 7014), (35, 6012), (36, 5845), (42, 5010), (45, 4676), (60, 3507), (63, 3340), (70, 3006), (84, 2505), (90, 2338), (105, 2004), (126, 1670), (140, 1503), (167, 1260), (180, 1169), (210, 1002), (252, 835), (315, 668), (334, 630), (420, 501)]