161585920

素因数分解:

$2^8\times 5^1\times {\mathrm{41}}^1\times {\mathrm{3079}}^1$

素因数の和:3141

約数の個数: 72

約数和(自身を含む): 396617760

約数和(自身を除く): 235031840

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 41, 64, 80, 82, 128, 160, 164, 205, 256, 320, 328, 410, 640, 656, 820, 1280, 1312, 1640, 2624, 3079, 3280, 5248, 6158, 6560, 10496, 12316, 13120, 15395, 24632, 26240, 30790, 49264, 52480, 61580, 98528, 123160, 126239, 197056, 246320, 252478, 394112, 492640, 504956, 631195, 788224, 985280, 1009912, 1262390, 1970560, 2019824, 2524780, 3941120, 4039648, 5049560, 8079296, 10099120, 16158592, 20198240, 32317184, 40396480, 80792960, 161585920]

約数ペア:

[(1, 161585920), (2, 80792960), (4, 40396480), (5, 32317184), (8, 20198240), (10, 16158592), (16, 10099120), (20, 8079296), (32, 5049560), (40, 4039648), (41, 3941120), (64, 2524780), (80, 2019824), (82, 1970560), (128, 1262390), (160, 1009912), (164, 985280), (205, 788224), (256, 631195), (320, 504956), (328, 492640), (410, 394112), (640, 252478), (656, 246320), (820, 197056), (1280, 126239), (1312, 123160), (1640, 98528), (2624, 61580), (3079, 52480), (3280, 49264), (5248, 30790), (6158, 26240), (6560, 24632), (10496, 15395), (12316, 13120)]