18985872

素因数分解:

$2^4\times 3^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{439}}^1$

素因数の和:520

約数の個数: 80

約数和(自身を含む): 53032320

約数和(自身を除く): 34046448

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 17, 24, 34, 48, 51, 53, 68, 102, 106, 136, 159, 204, 212, 272, 318, 408, 424, 439, 636, 816, 848, 878, 901, 1272, 1317, 1756, 1802, 2544, 2634, 2703, 3512, 3604, 5268, 5406, 7024, 7208, 7463, 10536, 10812, 14416, 14926, 21072, 21624, 22389, 23267, 29852, 43248, 44778, 46534, 59704, 69801, 89556, 93068, 119408, 139602, 179112, 186136, 279204, 358224, 372272, 395539, 558408, 791078, 1116816, 1186617, 1582156, 2373234, 3164312, 4746468, 6328624, 9492936, 18985872]

約数ペア:

[(1, 18985872), (2, 9492936), (3, 6328624), (4, 4746468), (6, 3164312), (8, 2373234), (12, 1582156), (16, 1186617), (17, 1116816), (24, 791078), (34, 558408), (48, 395539), (51, 372272), (53, 358224), (68, 279204), (102, 186136), (106, 179112), (136, 139602), (159, 119408), (204, 93068), (212, 89556), (272, 69801), (318, 59704), (408, 46534), (424, 44778), (439, 43248), (636, 29852), (816, 23267), (848, 22389), (878, 21624), (901, 21072), (1272, 14926), (1317, 14416), (1756, 10812), (1802, 10536), (2544, 7463), (2634, 7208), (2703, 7024), (3512, 5406), (3604, 5268)]