209719404

素因数分解:

$2^2\times 3^2\times {\mathrm{37}}^1\times {\mathrm{79}}^1\times {\mathrm{1993}}^1$

素因数の和:2119

約数の個数: 72

約数和(自身を含む): 551620160

約数和(自身を除く): 341900756

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 37, 74, 79, 111, 148, 158, 222, 237, 316, 333, 444, 474, 666, 711, 948, 1332, 1422, 1993, 2844, 2923, 3986, 5846, 5979, 7972, 8769, 11692, 11958, 17538, 17937, 23916, 26307, 35076, 35874, 52614, 71748, 73741, 105228, 147482, 157447, 221223, 294964, 314894, 442446, 472341, 629788, 663669, 884892, 944682, 1327338, 1417023, 1889364, 2654676, 2834046, 5668092, 5825539, 11651078, 17476617, 23302156, 34953234, 52429851, 69906468, 104859702, 209719404]

約数ペア:

[(1, 209719404), (2, 104859702), (3, 69906468), (4, 52429851), (6, 34953234), (9, 23302156), (12, 17476617), (18, 11651078), (36, 5825539), (37, 5668092), (74, 2834046), (79, 2654676), (111, 1889364), (148, 1417023), (158, 1327338), (222, 944682), (237, 884892), (316, 663669), (333, 629788), (444, 472341), (474, 442446), (666, 314894), (711, 294964), (948, 221223), (1332, 157447), (1422, 147482), (1993, 105228), (2844, 73741), (2923, 71748), (3986, 52614), (5846, 35874), (5979, 35076), (7972, 26307), (8769, 23916), (11692, 17937), (11958, 17538)]