278312988

素因数分解:

$2^2\times 3^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{20011}}^1$

素因数の和:20098

約数の個数: 48

約数和(自身を含む): 694816640

約数和(自身を除く): 416503652

約数列:

[1, 2, 3, 4, 6, 12, 19, 38, 57, 61, 76, 114, 122, 183, 228, 244, 366, 732, 1159, 2318, 3477, 4636, 6954, 13908, 20011, 40022, 60033, 80044, 120066, 240132, 380209, 760418, 1140627, 1220671, 1520836, 2281254, 2441342, 3662013, 4562508, 4882684, 7324026, 14648052, 23192749, 46385498, 69578247, 92770996, 139156494, 278312988]

約数ペア:

[(1, 278312988), (2, 139156494), (3, 92770996), (4, 69578247), (6, 46385498), (12, 23192749), (19, 14648052), (38, 7324026), (57, 4882684), (61, 4562508), (76, 3662013), (114, 2441342), (122, 2281254), (183, 1520836), (228, 1220671), (244, 1140627), (366, 760418), (732, 380209), (1159, 240132), (2318, 120066), (3477, 80044), (4636, 60033), (6954, 40022), (13908, 20011)]