18688740

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{44497}}^1$

素因数の和:44516

約数の個数: 48

約数和(自身を含む): 59805312

約数和(自身を除く): 41116572

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, 44497, 88994, 133491, 177988, 222485, 266982, 311479, 444970, 533964, 622958, 667455, 889940, 934437, 1245916, 1334910, 1557395, 1868874, 2669820, 3114790, 3737748, 4672185, 6229580, 9344370, 18688740]

約数ペア:

[(1, 18688740), (2, 9344370), (3, 6229580), (4, 4672185), (5, 3737748), (6, 3114790), (7, 2669820), (10, 1868874), (12, 1557395), (14, 1334910), (15, 1245916), (20, 934437), (21, 889940), (28, 667455), (30, 622958), (35, 533964), (42, 444970), (60, 311479), (70, 266982), (84, 222485), (105, 177988), (140, 133491), (210, 88994), (420, 44497)]