21798080

素因数分解:

$2^6\times 5^1\times {\mathrm{17}}^1\times {\mathrm{4007}}^1$

素因数の和:4041

約数の個数: 56

約数和(自身を含む): 54973728

約数和(自身を除く): 33175648

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 64, 68, 80, 85, 136, 160, 170, 272, 320, 340, 544, 680, 1088, 1360, 2720, 4007, 5440, 8014, 16028, 20035, 32056, 40070, 64112, 68119, 80140, 128224, 136238, 160280, 256448, 272476, 320560, 340595, 544952, 641120, 681190, 1089904, 1282240, 1362380, 2179808, 2724760, 4359616, 5449520, 10899040, 21798080]

約数ペア:

[(1, 21798080), (2, 10899040), (4, 5449520), (5, 4359616), (8, 2724760), (10, 2179808), (16, 1362380), (17, 1282240), (20, 1089904), (32, 681190), (34, 641120), (40, 544952), (64, 340595), (68, 320560), (80, 272476), (85, 256448), (136, 160280), (160, 136238), (170, 128224), (272, 80140), (320, 68119), (340, 64112), (544, 40070), (680, 32056), (1088, 20035), (1360, 16028), (2720, 8014), (4007, 5440)]