18752864

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{739}}^1$

素因数の和:823

約数の個数: 48

約数和(自身を含む): 40466160

約数和(自身を除く): 21713296

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 61, 104, 122, 208, 244, 416, 488, 739, 793, 976, 1478, 1586, 1952, 2956, 3172, 5912, 6344, 9607, 11824, 12688, 19214, 23648, 25376, 38428, 45079, 76856, 90158, 153712, 180316, 307424, 360632, 586027, 721264, 1172054, 1442528, 2344108, 4688216, 9376432, 18752864]

約数ペア:

[(1, 18752864), (2, 9376432), (4, 4688216), (8, 2344108), (13, 1442528), (16, 1172054), (26, 721264), (32, 586027), (52, 360632), (61, 307424), (104, 180316), (122, 153712), (208, 90158), (244, 76856), (416, 45079), (488, 38428), (739, 25376), (793, 23648), (976, 19214), (1478, 12688), (1586, 11824), (1952, 9607), (2956, 6344), (3172, 5912)]