81579316

素因数分解:

$2^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{317}}^1$

素因数の和:449

約数の個数: 72

約数和(自身を含む): 181187496

約数和(自身を除く): 99608180

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 49, 52, 91, 98, 101, 182, 196, 202, 317, 364, 404, 634, 637, 707, 1268, 1274, 1313, 1414, 2219, 2548, 2626, 2828, 4121, 4438, 4949, 5252, 8242, 8876, 9191, 9898, 15533, 16484, 18382, 19796, 28847, 31066, 32017, 36764, 57694, 62132, 64034, 64337, 115388, 128068, 128674, 201929, 224119, 257348, 403858, 416221, 448238, 807716, 832442, 896476, 1568833, 1664884, 2913547, 3137666, 5827094, 6275332, 11654188, 20394829, 40789658, 81579316]

約数ペア:

[(1, 81579316), (2, 40789658), (4, 20394829), (7, 11654188), (13, 6275332), (14, 5827094), (26, 3137666), (28, 2913547), (49, 1664884), (52, 1568833), (91, 896476), (98, 832442), (101, 807716), (182, 448238), (196, 416221), (202, 403858), (317, 257348), (364, 224119), (404, 201929), (634, 128674), (637, 128068), (707, 115388), (1268, 64337), (1274, 64034), (1313, 62132), (1414, 57694), (2219, 36764), (2548, 32017), (2626, 31066), (2828, 28847), (4121, 19796), (4438, 18382), (4949, 16484), (5252, 15533), (8242, 9898), (8876, 9191)]