20556690

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{809}}^1$

素因数の和:848

約数の個数: 96

約数和(自身を含む): 62052480

約数和(自身を除く): 41495790

約数列:

[1, 2, 3, 5, 6, 7, 10, 11, 14, 15, 21, 22, 30, 33, 35, 42, 55, 66, 70, 77, 105, 110, 121, 154, 165, 210, 231, 242, 330, 363, 385, 462, 605, 726, 770, 809, 847, 1155, 1210, 1618, 1694, 1815, 2310, 2427, 2541, 3630, 4045, 4235, 4854, 5082, 5663, 8090, 8470, 8899, 11326, 12135, 12705, 16989, 17798, 24270, 25410, 26697, 28315, 33978, 44495, 53394, 56630, 62293, 84945, 88990, 97889, 124586, 133485, 169890, 186879, 195778, 266970, 293667, 311465, 373758, 489445, 587334, 622930, 685223, 934395, 978890, 1370446, 1468335, 1868790, 2055669, 2936670, 3426115, 4111338, 6852230, 10278345, 20556690]

約数ペア:

[(1, 20556690), (2, 10278345), (3, 6852230), (5, 4111338), (6, 3426115), (7, 2936670), (10, 2055669), (11, 1868790), (14, 1468335), (15, 1370446), (21, 978890), (22, 934395), (30, 685223), (33, 622930), (35, 587334), (42, 489445), (55, 373758), (66, 311465), (70, 293667), (77, 266970), (105, 195778), (110, 186879), (121, 169890), (154, 133485), (165, 124586), (210, 97889), (231, 88990), (242, 84945), (330, 62293), (363, 56630), (385, 53394), (462, 44495), (605, 33978), (726, 28315), (770, 26697), (809, 25410), (847, 24270), (1155, 17798), (1210, 16989), (1618, 12705), (1694, 12135), (1815, 11326), (2310, 8899), (2427, 8470), (2541, 8090), (3630, 5663), (4045, 5082), (4235, 4854)]