257545960

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{101}}^1\times {\mathrm{1301}}^1$

素因数の和:1427

約数の個数: 96

約数和(自身を含む): 681284520

約数和(自身を除く): 423738560

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 101, 140, 196, 202, 245, 280, 392, 404, 490, 505, 707, 808, 980, 1010, 1301, 1414, 1960, 2020, 2602, 2828, 3535, 4040, 4949, 5204, 5656, 6505, 7070, 9107, 9898, 10408, 13010, 14140, 18214, 19796, 24745, 26020, 28280, 36428, 39592, 45535, 49490, 52040, 63749, 72856, 91070, 98980, 127498, 131401, 182140, 197960, 254996, 262802, 318745, 364280, 509992, 525604, 637490, 657005, 919807, 1051208, 1274980, 1314010, 1839614, 2549960, 2628020, 3679228, 4599035, 5256040, 6438649, 7358456, 9198070, 12877298, 18396140, 25754596, 32193245, 36792280, 51509192, 64386490, 128772980, 257545960]

約数ペア:

[(1, 257545960), (2, 128772980), (4, 64386490), (5, 51509192), (7, 36792280), (8, 32193245), (10, 25754596), (14, 18396140), (20, 12877298), (28, 9198070), (35, 7358456), (40, 6438649), (49, 5256040), (56, 4599035), (70, 3679228), (98, 2628020), (101, 2549960), (140, 1839614), (196, 1314010), (202, 1274980), (245, 1051208), (280, 919807), (392, 657005), (404, 637490), (490, 525604), (505, 509992), (707, 364280), (808, 318745), (980, 262802), (1010, 254996), (1301, 197960), (1414, 182140), (1960, 131401), (2020, 127498), (2602, 98980), (2828, 91070), (3535, 72856), (4040, 63749), (4949, 52040), (5204, 49490), (5656, 45535), (6505, 39592), (7070, 36428), (9107, 28280), (9898, 26020), (10408, 24745), (13010, 19796), (14140, 18214)]