18690420

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{44501}}^1$

素因数の和:44520

約数の個数: 48

約数和(自身を含む): 59810688

約数和(自身を除く): 41120268

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 44501, 89002, 133503, 178004, 222505, 267006, 311507, 445010, 534012, 623014, 667515, 890020, 934521, 1246028, 1335030, 1557535, 1869042, 2670060, 3115070, 3738084, 4672605, 6230140, 9345210, 18690420]

約数ペア:

[(1, 18690420), (2, 9345210), (3, 6230140), (4, 4672605), (5, 3738084), (6, 3115070), (7, 2670060), (10, 1869042), (12, 1557535), (14, 1335030), (15, 1246028), (20, 934521), (21, 890020), (28, 667515), (30, 623014), (35, 534012), (42, 445010), (60, 311507), (70, 267006), (84, 222505), (105, 178004), (140, 133503), (210, 89002), (420, 44501)]