1664946220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{641}}^1\times {\mathrm{18553}}^1$

素因数の和:19210

約数の個数: 48

約数和(自身を含む): 4002320448

約数和(自身を除く): 2337374228

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 641, 1282, 2564, 3205, 4487, 6410, 8974, 12820, 17948, 18553, 22435, 37106, 44870, 74212, 89740, 92765, 129871, 185530, 259742, 371060, 519484, 649355, 1298710, 2597420, 11892473, 23784946, 47569892, 59462365, 83247311, 118924730, 166494622, 237849460, 332989244, 416236555, 832473110, 1664946220]

約数ペア:

[(1, 1664946220), (2, 832473110), (4, 416236555), (5, 332989244), (7, 237849460), (10, 166494622), (14, 118924730), (20, 83247311), (28, 59462365), (35, 47569892), (70, 23784946), (140, 11892473), (641, 2597420), (1282, 1298710), (2564, 649355), (3205, 519484), (4487, 371060), (6410, 259742), (8974, 185530), (12820, 129871), (17948, 92765), (18553, 89740), (22435, 74212), (37106, 44870)]