18988767420

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{45211351}}^1$

素因数の和:45211370

約数の個数: 48

約数和(自身を含む): 60764057088

約数和(自身を除く): 41775289668

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 45211351, 90422702, 135634053, 180845404, 226056755, 271268106, 316479457, 452113510, 542536212, 632958914, 678170265, 904227020, 949438371, 1265917828, 1356340530, 1582397285, 1898876742, 2712681060, 3164794570, 3797753484, 4747191855, 6329589140, 9494383710, 18988767420]

約数ペア:

[(1, 18988767420), (2, 9494383710), (3, 6329589140), (4, 4747191855), (5, 3797753484), (6, 3164794570), (7, 2712681060), (10, 1898876742), (12, 1582397285), (14, 1356340530), (15, 1265917828), (20, 949438371), (21, 904227020), (28, 678170265), (30, 632958914), (35, 542536212), (42, 452113510), (60, 316479457), (70, 271268106), (84, 226056755), (105, 180845404), (140, 135634053), (210, 90422702), (420, 45211351)]