20098020

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{131}}^1\times {\mathrm{2557}}^1$

素因数の和:2700

約数の個数: 48

約数和(自身を含む): 56726208

約数和(自身を除く): 36628188

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 131, 262, 393, 524, 655, 786, 1310, 1572, 1965, 2557, 2620, 3930, 5114, 7671, 7860, 10228, 12785, 15342, 25570, 30684, 38355, 51140, 76710, 153420, 334967, 669934, 1004901, 1339868, 1674835, 2009802, 3349670, 4019604, 5024505, 6699340, 10049010, 20098020]

約数ペア:

[(1, 20098020), (2, 10049010), (3, 6699340), (4, 5024505), (5, 4019604), (6, 3349670), (10, 2009802), (12, 1674835), (15, 1339868), (20, 1004901), (30, 669934), (60, 334967), (131, 153420), (262, 76710), (393, 51140), (524, 38355), (655, 30684), (786, 25570), (1310, 15342), (1572, 12785), (1965, 10228), (2557, 7860), (2620, 7671), (3930, 5114)]