19900728

素因数分解:

$2^3\times 3^5\times {\mathrm{29}}^1\times {\mathrm{353}}^1$

素因数の和:403

約数の個数: 96

約数和(自身を含む): 57985200

約数和(自身を除く): 38084472

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 29, 36, 54, 58, 72, 81, 87, 108, 116, 162, 174, 216, 232, 243, 261, 324, 348, 353, 486, 522, 648, 696, 706, 783, 972, 1044, 1059, 1412, 1566, 1944, 2088, 2118, 2349, 2824, 3132, 3177, 4236, 4698, 6264, 6354, 7047, 8472, 9396, 9531, 10237, 12708, 14094, 18792, 19062, 20474, 25416, 28188, 28593, 30711, 38124, 40948, 56376, 57186, 61422, 76248, 81896, 85779, 92133, 114372, 122844, 171558, 184266, 228744, 245688, 276399, 343116, 368532, 552798, 686232, 737064, 829197, 1105596, 1658394, 2211192, 2487591, 3316788, 4975182, 6633576, 9950364, 19900728]

約数ペア:

[(1, 19900728), (2, 9950364), (3, 6633576), (4, 4975182), (6, 3316788), (8, 2487591), (9, 2211192), (12, 1658394), (18, 1105596), (24, 829197), (27, 737064), (29, 686232), (36, 552798), (54, 368532), (58, 343116), (72, 276399), (81, 245688), (87, 228744), (108, 184266), (116, 171558), (162, 122844), (174, 114372), (216, 92133), (232, 85779), (243, 81896), (261, 76248), (324, 61422), (348, 57186), (353, 56376), (486, 40948), (522, 38124), (648, 30711), (696, 28593), (706, 28188), (783, 25416), (972, 20474), (1044, 19062), (1059, 18792), (1412, 14094), (1566, 12708), (1944, 10237), (2088, 9531), (2118, 9396), (2349, 8472), (2824, 7047), (3132, 6354), (3177, 6264), (4236, 4698)]