217440440

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{110939}}^1$

素因数の和:110964

約数の個数: 48

約数和(自身を含む): 569122200

約数和(自身を除く): 351681760

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 392, 490, 980, 1960, 110939, 221878, 443756, 554695, 776573, 887512, 1109390, 1553146, 2218780, 3106292, 3882865, 4437560, 5436011, 6212584, 7765730, 10872022, 15531460, 21744044, 27180055, 31062920, 43488088, 54360110, 108720220, 217440440]

約数ペア:

[(1, 217440440), (2, 108720220), (4, 54360110), (5, 43488088), (7, 31062920), (8, 27180055), (10, 21744044), (14, 15531460), (20, 10872022), (28, 7765730), (35, 6212584), (40, 5436011), (49, 4437560), (56, 3882865), (70, 3106292), (98, 2218780), (140, 1553146), (196, 1109390), (245, 887512), (280, 776573), (392, 554695), (490, 443756), (980, 221878), (1960, 110939)]