128906880

素因数分解:

$2^7\times 3^1\times 5^1\times {\mathrm{67139}}^1$

素因数の和:67161

約数の個数: 64

約数和(自身を含む): 410896800

約数和(自身を除く): 281989920

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 120, 128, 160, 192, 240, 320, 384, 480, 640, 960, 1920, 67139, 134278, 201417, 268556, 335695, 402834, 537112, 671390, 805668, 1007085, 1074224, 1342780, 1611336, 2014170, 2148448, 2685560, 3222672, 4028340, 4296896, 5371120, 6445344, 8056680, 8593792, 10742240, 12890688, 16113360, 21484480, 25781376, 32226720, 42968960, 64453440, 128906880]

約数ペア:

[(1, 128906880), (2, 64453440), (3, 42968960), (4, 32226720), (5, 25781376), (6, 21484480), (8, 16113360), (10, 12890688), (12, 10742240), (15, 8593792), (16, 8056680), (20, 6445344), (24, 5371120), (30, 4296896), (32, 4028340), (40, 3222672), (48, 2685560), (60, 2148448), (64, 2014170), (80, 1611336), (96, 1342780), (120, 1074224), (128, 1007085), (160, 805668), (192, 671390), (240, 537112), (320, 402834), (384, 335695), (480, 268556), (640, 201417), (960, 134278), (1920, 67139)]