666932720

素因数分解:

$2^4\times 5^1\times {\mathrm{29}}^1\times {\mathrm{389}}^1\times {\mathrm{739}}^1$

素因数の和:1170

約数の個数: 80

約数和(自身を含む): 1610388000

約数和(自身を除く): 943455280

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 40, 58, 80, 116, 145, 232, 290, 389, 464, 580, 739, 778, 1160, 1478, 1556, 1945, 2320, 2956, 3112, 3695, 3890, 5912, 6224, 7390, 7780, 11281, 11824, 14780, 15560, 21431, 22562, 29560, 31120, 42862, 45124, 56405, 59120, 85724, 90248, 107155, 112810, 171448, 180496, 214310, 225620, 287471, 342896, 428620, 451240, 574942, 857240, 902480, 1149884, 1437355, 1714480, 2299768, 2874710, 4599536, 5749420, 8336659, 11498840, 16673318, 22997680, 33346636, 41683295, 66693272, 83366590, 133386544, 166733180, 333466360, 666932720]

約数ペア:

[(1, 666932720), (2, 333466360), (4, 166733180), (5, 133386544), (8, 83366590), (10, 66693272), (16, 41683295), (20, 33346636), (29, 22997680), (40, 16673318), (58, 11498840), (80, 8336659), (116, 5749420), (145, 4599536), (232, 2874710), (290, 2299768), (389, 1714480), (464, 1437355), (580, 1149884), (739, 902480), (778, 857240), (1160, 574942), (1478, 451240), (1556, 428620), (1945, 342896), (2320, 287471), (2956, 225620), (3112, 214310), (3695, 180496), (3890, 171448), (5912, 112810), (6224, 107155), (7390, 90248), (7780, 85724), (11281, 59120), (11824, 56405), (14780, 45124), (15560, 42862), (21431, 31120), (22562, 29560)]