261221280

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{389}}^1\times {\mathrm{1399}}^1$

素因数の和:1806

約数の個数: 96

約数和(自身を含む): 825552000

約数和(自身を除く): 564330720

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 80, 96, 120, 160, 240, 389, 480, 778, 1167, 1399, 1556, 1945, 2334, 2798, 3112, 3890, 4197, 4668, 5596, 5835, 6224, 6995, 7780, 8394, 9336, 11192, 11670, 12448, 13990, 15560, 16788, 18672, 20985, 22384, 23340, 27980, 31120, 33576, 37344, 41970, 44768, 46680, 55960, 62240, 67152, 83940, 93360, 111920, 134304, 167880, 186720, 223840, 335760, 544211, 671520, 1088422, 1632633, 2176844, 2721055, 3265266, 4353688, 5442110, 6530532, 8163165, 8707376, 10884220, 13061064, 16326330, 17414752, 21768440, 26122128, 32652660, 43536880, 52244256, 65305320, 87073760, 130610640, 261221280]

約数ペア:

[(1, 261221280), (2, 130610640), (3, 87073760), (4, 65305320), (5, 52244256), (6, 43536880), (8, 32652660), (10, 26122128), (12, 21768440), (15, 17414752), (16, 16326330), (20, 13061064), (24, 10884220), (30, 8707376), (32, 8163165), (40, 6530532), (48, 5442110), (60, 4353688), (80, 3265266), (96, 2721055), (120, 2176844), (160, 1632633), (240, 1088422), (389, 671520), (480, 544211), (778, 335760), (1167, 223840), (1399, 186720), (1556, 167880), (1945, 134304), (2334, 111920), (2798, 93360), (3112, 83940), (3890, 67152), (4197, 62240), (4668, 55960), (5596, 46680), (5835, 44768), (6224, 41970), (6995, 37344), (7780, 33576), (8394, 31120), (9336, 27980), (11192, 23340), (11670, 22384), (12448, 20985), (13990, 18672), (15560, 16788)]