215513984

素因数分解:

$2^7\times 7^1\times {\mathrm{31}}^1\times {\mathrm{7759}}^1$

素因数の和:7811

約数の個数: 64

約数和(自身を含む): 506572800

約数和(自身を除く): 291058816

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 31, 32, 56, 62, 64, 112, 124, 128, 217, 224, 248, 434, 448, 496, 868, 896, 992, 1736, 1984, 3472, 3968, 6944, 7759, 13888, 15518, 27776, 31036, 54313, 62072, 108626, 124144, 217252, 240529, 248288, 434504, 481058, 496576, 869008, 962116, 993152, 1683703, 1738016, 1924232, 3367406, 3476032, 3848464, 6734812, 6952064, 7696928, 13469624, 15393856, 26939248, 30787712, 53878496, 107756992, 215513984]

約数ペア:

[(1, 215513984), (2, 107756992), (4, 53878496), (7, 30787712), (8, 26939248), (14, 15393856), (16, 13469624), (28, 7696928), (31, 6952064), (32, 6734812), (56, 3848464), (62, 3476032), (64, 3367406), (112, 1924232), (124, 1738016), (128, 1683703), (217, 993152), (224, 962116), (248, 869008), (434, 496576), (448, 481058), (496, 434504), (868, 248288), (896, 240529), (992, 217252), (1736, 124144), (1984, 108626), (3472, 62072), (3968, 54313), (6944, 31036), (7759, 27776), (13888, 15518)]