128426880

素因数分解:

$2^7\times 3^1\times 5^1\times {\mathrm{66889}}^1$

素因数の和:66911

約数の個数: 64

約数和(自身を含む): 409366800

約数和(自身を除く): 280939920

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, 66889, 133778, 200667, 267556, 334445, 401334, 535112, 668890, 802668, 1003335, 1070224, 1337780, 1605336, 2006670, 2140448, 2675560, 3210672, 4013340, 4280896, 5351120, 6421344, 8026680, 8561792, 10702240, 12842688, 16053360, 21404480, 25685376, 32106720, 42808960, 64213440, 128426880]

約数ペア:

[(1, 128426880), (2, 64213440), (3, 42808960), (4, 32106720), (5, 25685376), (6, 21404480), (8, 16053360), (10, 12842688), (12, 10702240), (15, 8561792), (16, 8026680), (20, 6421344), (24, 5351120), (30, 4280896), (32, 4013340), (40, 3210672), (48, 2675560), (60, 2140448), (64, 2006670), (80, 1605336), (96, 1337780), (120, 1070224), (128, 1003335), (160, 802668), (192, 668890), (240, 535112), (320, 401334), (384, 334445), (480, 267556), (640, 200667), (960, 133778), (1920, 66889)]