128280640

素因数分解:

$2^6\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23581}}^1$

素因数の和:23615

約数の個数: 56

約数和(自身を含む): 323450712

約数和(自身を除く): 195170072

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, 5440, 23581, 47162, 94324, 117905, 188648, 235810, 377296, 400877, 471620, 754592, 801754, 943240, 1509184, 1603508, 1886480, 2004385, 3207016, 3772960, 4008770, 6414032, 7545920, 8017540, 12828064, 16035080, 25656128, 32070160, 64140320, 128280640]

約数ペア:

[(1, 128280640), (2, 64140320), (4, 32070160), (5, 25656128), (8, 16035080), (10, 12828064), (16, 8017540), (17, 7545920), (20, 6414032), (32, 4008770), (34, 3772960), (40, 3207016), (64, 2004385), (68, 1886480), (80, 1603508), (85, 1509184), (136, 943240), (160, 801754), (170, 754592), (272, 471620), (320, 400877), (340, 377296), (544, 235810), (680, 188648), (1088, 117905), (1360, 94324), (2720, 47162), (5440, 23581)]