217305480

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{258697}}^1$

素因数の和:258718

約数の個数: 64

約数和(自身を含む): 745050240

約数和(自身を除く): 527744760

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840, 258697, 517394, 776091, 1034788, 1293485, 1552182, 1810879, 2069576, 2586970, 3104364, 3621758, 3880455, 5173940, 5432637, 6208728, 7243516, 7760910, 9054395, 10347880, 10865274, 14487032, 15521820, 18108790, 21730548, 27163185, 31043640, 36217580, 43461096, 54326370, 72435160, 108652740, 217305480]

約数ペア:

[(1, 217305480), (2, 108652740), (3, 72435160), (4, 54326370), (5, 43461096), (6, 36217580), (7, 31043640), (8, 27163185), (10, 21730548), (12, 18108790), (14, 15521820), (15, 14487032), (20, 10865274), (21, 10347880), (24, 9054395), (28, 7760910), (30, 7243516), (35, 6208728), (40, 5432637), (42, 5173940), (56, 3880455), (60, 3621758), (70, 3104364), (84, 2586970), (105, 2069576), (120, 1810879), (140, 1552182), (168, 1293485), (210, 1034788), (280, 776091), (420, 517394), (840, 258697)]