20346568

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{283}}^1$

素因数の和:362

約数の個数: 64

約数和(自身を含む): 44985600

約数和(自身を除く): 24639032

約数列:

[1, 2, 4, 8, 11, 19, 22, 38, 43, 44, 76, 86, 88, 152, 172, 209, 283, 344, 418, 473, 566, 817, 836, 946, 1132, 1634, 1672, 1892, 2264, 3113, 3268, 3784, 5377, 6226, 6536, 8987, 10754, 12169, 12452, 17974, 21508, 24338, 24904, 35948, 43016, 48676, 59147, 71896, 97352, 118294, 133859, 231211, 236588, 267718, 462422, 473176, 535436, 924844, 1070872, 1849688, 2543321, 5086642, 10173284, 20346568]

約数ペア:

[(1, 20346568), (2, 10173284), (4, 5086642), (8, 2543321), (11, 1849688), (19, 1070872), (22, 924844), (38, 535436), (43, 473176), (44, 462422), (76, 267718), (86, 236588), (88, 231211), (152, 133859), (172, 118294), (209, 97352), (283, 71896), (344, 59147), (418, 48676), (473, 43016), (566, 35948), (817, 24904), (836, 24338), (946, 21508), (1132, 17974), (1634, 12452), (1672, 12169), (1892, 10754), (2264, 8987), (3113, 6536), (3268, 6226), (3784, 5377)]