15728020

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{1459}}^1$

素因数の和:1493

約数の個数: 72

約数和(自身を含む): 41942880

約数和(自身を除く): 26214860

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 49, 55, 70, 77, 98, 110, 140, 154, 196, 220, 245, 308, 385, 490, 539, 770, 980, 1078, 1459, 1540, 2156, 2695, 2918, 5390, 5836, 7295, 10213, 10780, 14590, 16049, 20426, 29180, 32098, 40852, 51065, 64196, 71491, 80245, 102130, 112343, 142982, 160490, 204260, 224686, 285964, 320980, 357455, 449372, 561715, 714910, 786401, 1123430, 1429820, 1572802, 2246860, 3145604, 3932005, 7864010, 15728020]

約数ペア:

[(1, 15728020), (2, 7864010), (4, 3932005), (5, 3145604), (7, 2246860), (10, 1572802), (11, 1429820), (14, 1123430), (20, 786401), (22, 714910), (28, 561715), (35, 449372), (44, 357455), (49, 320980), (55, 285964), (70, 224686), (77, 204260), (98, 160490), (110, 142982), (140, 112343), (154, 102130), (196, 80245), (220, 71491), (245, 64196), (308, 51065), (385, 40852), (490, 32098), (539, 29180), (770, 20426), (980, 16049), (1078, 14590), (1459, 10780), (1540, 10213), (2156, 7295), (2695, 5836), (2918, 5390)]