66726400

素因数分解:

$2^9\times 5^2\times {\mathrm{13}}^1\times {\mathrm{401}}^1$

素因数の和:442

約数の個数: 120

約数和(自身を含む): 178480764

約数和(自身を除く): 111754364

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 32, 40, 50, 52, 64, 65, 80, 100, 104, 128, 130, 160, 200, 208, 256, 260, 320, 325, 400, 401, 416, 512, 520, 640, 650, 800, 802, 832, 1040, 1280, 1300, 1600, 1604, 1664, 2005, 2080, 2560, 2600, 3200, 3208, 3328, 4010, 4160, 5200, 5213, 6400, 6416, 6656, 8020, 8320, 10025, 10400, 10426, 12800, 12832, 16040, 16640, 20050, 20800, 20852, 25664, 26065, 32080, 33280, 40100, 41600, 41704, 51328, 52130, 64160, 80200, 83200, 83408, 102656, 104260, 128320, 130325, 160400, 166400, 166816, 205312, 208520, 256640, 260650, 320800, 333632, 417040, 513280, 521300, 641600, 667264, 834080, 1026560, 1042600, 1283200, 1334528, 1668160, 2085200, 2566400, 2669056, 3336320, 4170400, 5132800, 6672640, 8340800, 13345280, 16681600, 33363200, 66726400]

約数ペア:

[(1, 66726400), (2, 33363200), (4, 16681600), (5, 13345280), (8, 8340800), (10, 6672640), (13, 5132800), (16, 4170400), (20, 3336320), (25, 2669056), (26, 2566400), (32, 2085200), (40, 1668160), (50, 1334528), (52, 1283200), (64, 1042600), (65, 1026560), (80, 834080), (100, 667264), (104, 641600), (128, 521300), (130, 513280), (160, 417040), (200, 333632), (208, 320800), (256, 260650), (260, 256640), (320, 208520), (325, 205312), (400, 166816), (401, 166400), (416, 160400), (512, 130325), (520, 128320), (640, 104260), (650, 102656), (800, 83408), (802, 83200), (832, 80200), (1040, 64160), (1280, 52130), (1300, 51328), (1600, 41704), (1604, 41600), (1664, 40100), (2005, 33280), (2080, 32080), (2560, 26065), (2600, 25664), (3200, 20852), (3208, 20800), (3328, 20050), (4010, 16640), (4160, 16040), (5200, 12832), (5213, 12800), (6400, 10426), (6416, 10400), (6656, 10025), (8020, 8320)]