1808520

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{2153}}^1$

素因数の和:2174

約数の個数: 64

約数和(自身を含む): 6203520

約数和(自身を除く): 4395000

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840, 2153, 4306, 6459, 8612, 10765, 12918, 15071, 17224, 21530, 25836, 30142, 32295, 43060, 45213, 51672, 60284, 64590, 75355, 86120, 90426, 120568, 129180, 150710, 180852, 226065, 258360, 301420, 361704, 452130, 602840, 904260, 1808520]

約数ペア:

[(1, 1808520), (2, 904260), (3, 602840), (4, 452130), (5, 361704), (6, 301420), (7, 258360), (8, 226065), (10, 180852), (12, 150710), (14, 129180), (15, 120568), (20, 90426), (21, 86120), (24, 75355), (28, 64590), (30, 60284), (35, 51672), (40, 45213), (42, 43060), (56, 32295), (60, 30142), (70, 25836), (84, 21530), (105, 17224), (120, 15071), (140, 12918), (168, 10765), (210, 8612), (280, 6459), (420, 4306), (840, 2153)]