20327800

素因数分解:

$2^3\times 5^2\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{67}}^1$

素因数の和:161

約数の個数: 96

約数和(自身を含む): 50465520

約数和(自身を除く): 30137720

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 37, 40, 41, 50, 67, 74, 82, 100, 134, 148, 164, 185, 200, 205, 268, 296, 328, 335, 370, 410, 536, 670, 740, 820, 925, 1025, 1340, 1480, 1517, 1640, 1675, 1850, 2050, 2479, 2680, 2747, 3034, 3350, 3700, 4100, 4958, 5494, 6068, 6700, 7400, 7585, 8200, 9916, 10988, 12136, 12395, 13400, 13735, 15170, 19832, 21976, 24790, 27470, 30340, 37925, 49580, 54940, 60680, 61975, 68675, 75850, 99160, 101639, 109880, 123950, 137350, 151700, 203278, 247900, 274700, 303400, 406556, 495800, 508195, 549400, 813112, 1016390, 2032780, 2540975, 4065560, 5081950, 10163900, 20327800]

約数ペア:

[(1, 20327800), (2, 10163900), (4, 5081950), (5, 4065560), (8, 2540975), (10, 2032780), (20, 1016390), (25, 813112), (37, 549400), (40, 508195), (41, 495800), (50, 406556), (67, 303400), (74, 274700), (82, 247900), (100, 203278), (134, 151700), (148, 137350), (164, 123950), (185, 109880), (200, 101639), (205, 99160), (268, 75850), (296, 68675), (328, 61975), (335, 60680), (370, 54940), (410, 49580), (536, 37925), (670, 30340), (740, 27470), (820, 24790), (925, 21976), (1025, 19832), (1340, 15170), (1480, 13735), (1517, 13400), (1640, 12395), (1675, 12136), (1850, 10988), (2050, 9916), (2479, 8200), (2680, 7585), (2747, 7400), (3034, 6700), (3350, 6068), (3700, 5494), (4100, 4958)]