19785688

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^2\times {\mathrm{31}}^1$

素因数の和:105

約数の個数: 96

約数和(自身を含む): 46085760

約数和(自身を除く): 26300072

約数列:

[1, 2, 4, 8, 13, 17, 19, 26, 31, 34, 38, 52, 62, 68, 76, 104, 124, 136, 152, 221, 247, 248, 323, 361, 403, 442, 494, 527, 589, 646, 722, 806, 884, 988, 1054, 1178, 1292, 1444, 1612, 1768, 1976, 2108, 2356, 2584, 2888, 3224, 4199, 4216, 4693, 4712, 6137, 6851, 7657, 8398, 9386, 10013, 11191, 12274, 13702, 15314, 16796, 18772, 20026, 22382, 24548, 27404, 30628, 33592, 37544, 40052, 44764, 49096, 54808, 61256, 79781, 80104, 89528, 130169, 145483, 159562, 190247, 260338, 290966, 319124, 380494, 520676, 581932, 638248, 760988, 1041352, 1163864, 1521976, 2473211, 4946422, 9892844, 19785688]

約数ペア:

[(1, 19785688), (2, 9892844), (4, 4946422), (8, 2473211), (13, 1521976), (17, 1163864), (19, 1041352), (26, 760988), (31, 638248), (34, 581932), (38, 520676), (52, 380494), (62, 319124), (68, 290966), (76, 260338), (104, 190247), (124, 159562), (136, 145483), (152, 130169), (221, 89528), (247, 80104), (248, 79781), (323, 61256), (361, 54808), (403, 49096), (442, 44764), (494, 40052), (527, 37544), (589, 33592), (646, 30628), (722, 27404), (806, 24548), (884, 22382), (988, 20026), (1054, 18772), (1178, 16796), (1292, 15314), (1444, 13702), (1612, 12274), (1768, 11191), (1976, 10013), (2108, 9386), (2356, 8398), (2584, 7657), (2888, 6851), (3224, 6137), (4199, 4712), (4216, 4693)]