77981480

素因数分解:

$2^3\times 5^1\times {\mathrm{59}}^1\times {\mathrm{173}}^1\times {\mathrm{191}}^1$

素因数の和:434

約数の個数: 64

約数和(自身を含む): 180403200

約数和(自身を除く): 102421720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 59, 118, 173, 191, 236, 295, 346, 382, 472, 590, 692, 764, 865, 955, 1180, 1384, 1528, 1730, 1910, 2360, 3460, 3820, 6920, 7640, 10207, 11269, 20414, 22538, 33043, 40828, 45076, 51035, 56345, 66086, 81656, 90152, 102070, 112690, 132172, 165215, 204140, 225380, 264344, 330430, 408280, 450760, 660860, 1321720, 1949537, 3899074, 7798148, 9747685, 15596296, 19495370, 38990740, 77981480]

約数ペア:

[(1, 77981480), (2, 38990740), (4, 19495370), (5, 15596296), (8, 9747685), (10, 7798148), (20, 3899074), (40, 1949537), (59, 1321720), (118, 660860), (173, 450760), (191, 408280), (236, 330430), (295, 264344), (346, 225380), (382, 204140), (472, 165215), (590, 132172), (692, 112690), (764, 102070), (865, 90152), (955, 81656), (1180, 66086), (1384, 56345), (1528, 51035), (1730, 45076), (1910, 40828), (2360, 33043), (3460, 22538), (3820, 20414), (6920, 11269), (7640, 10207)]