20257952

素因数分解:

$2^5\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{233}}^1$

素因数の和:286

約数の個数: 96

約数和(自身を含む): 49533120

約数和(自身を除く): 29275168

約数列:

[1, 2, 4, 8, 11, 13, 16, 19, 22, 26, 32, 38, 44, 52, 76, 88, 104, 143, 152, 176, 208, 209, 233, 247, 286, 304, 352, 416, 418, 466, 494, 572, 608, 836, 932, 988, 1144, 1672, 1864, 1976, 2288, 2563, 2717, 3029, 3344, 3728, 3952, 4427, 4576, 5126, 5434, 6058, 6688, 7456, 7904, 8854, 10252, 10868, 12116, 17708, 20504, 21736, 24232, 33319, 35416, 41008, 43472, 48464, 48697, 57551, 66638, 70832, 82016, 86944, 96928, 97394, 115102, 133276, 141664, 194788, 230204, 266552, 389576, 460408, 533104, 633061, 779152, 920816, 1066208, 1266122, 1558304, 1841632, 2532244, 5064488, 10128976, 20257952]

約数ペア:

[(1, 20257952), (2, 10128976), (4, 5064488), (8, 2532244), (11, 1841632), (13, 1558304), (16, 1266122), (19, 1066208), (22, 920816), (26, 779152), (32, 633061), (38, 533104), (44, 460408), (52, 389576), (76, 266552), (88, 230204), (104, 194788), (143, 141664), (152, 133276), (176, 115102), (208, 97394), (209, 96928), (233, 86944), (247, 82016), (286, 70832), (304, 66638), (352, 57551), (416, 48697), (418, 48464), (466, 43472), (494, 41008), (572, 35416), (608, 33319), (836, 24232), (932, 21736), (988, 20504), (1144, 17708), (1672, 12116), (1864, 10868), (1976, 10252), (2288, 8854), (2563, 7904), (2717, 7456), (3029, 6688), (3344, 6058), (3728, 5434), (3952, 5126), (4427, 4576)]