20397168

素因数分解:

$2^4\times 3^2\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{163}}^1$

素因数の和:267

約数の個数: 120

約数和(自身を含む): 63448320

約数和(自身を除く): 43051152

約数列:

[1, 2, 3, 4, 6, 8, 9, 11, 12, 16, 18, 22, 24, 33, 36, 44, 48, 66, 72, 79, 88, 99, 132, 144, 158, 163, 176, 198, 237, 264, 316, 326, 396, 474, 489, 528, 632, 652, 711, 792, 869, 948, 978, 1264, 1304, 1422, 1467, 1584, 1738, 1793, 1896, 1956, 2607, 2608, 2844, 2934, 3476, 3586, 3792, 3912, 5214, 5379, 5688, 5868, 6952, 7172, 7821, 7824, 10428, 10758, 11376, 11736, 12877, 13904, 14344, 15642, 16137, 20856, 21516, 23472, 25754, 28688, 31284, 32274, 38631, 41712, 43032, 51508, 62568, 64548, 77262, 86064, 103016, 115893, 125136, 129096, 141647, 154524, 206032, 231786, 258192, 283294, 309048, 424941, 463572, 566588, 618096, 849882, 927144, 1133176, 1274823, 1699764, 1854288, 2266352, 2549646, 3399528, 5099292, 6799056, 10198584, 20397168]

約数ペア:

[(1, 20397168), (2, 10198584), (3, 6799056), (4, 5099292), (6, 3399528), (8, 2549646), (9, 2266352), (11, 1854288), (12, 1699764), (16, 1274823), (18, 1133176), (22, 927144), (24, 849882), (33, 618096), (36, 566588), (44, 463572), (48, 424941), (66, 309048), (72, 283294), (79, 258192), (88, 231786), (99, 206032), (132, 154524), (144, 141647), (158, 129096), (163, 125136), (176, 115893), (198, 103016), (237, 86064), (264, 77262), (316, 64548), (326, 62568), (396, 51508), (474, 43032), (489, 41712), (528, 38631), (632, 32274), (652, 31284), (711, 28688), (792, 25754), (869, 23472), (948, 21516), (978, 20856), (1264, 16137), (1304, 15642), (1422, 14344), (1467, 13904), (1584, 12877), (1738, 11736), (1793, 11376), (1896, 10758), (1956, 10428), (2607, 7824), (2608, 7821), (2844, 7172), (2934, 6952), (3476, 5868), (3586, 5688), (3792, 5379), (3912, 5214)]