1520251928

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{19997}}^1$

素因数の和:20076

約数の個数: 64

約数和(自身を含む): 3326067360

約数和(自身を除く): 1805815432

約数列:

[1, 2, 4, 8, 13, 17, 26, 34, 43, 52, 68, 86, 104, 136, 172, 221, 344, 442, 559, 731, 884, 1118, 1462, 1768, 2236, 2924, 4472, 5848, 9503, 19006, 19997, 38012, 39994, 76024, 79988, 159976, 259961, 339949, 519922, 679898, 859871, 1039844, 1359796, 1719742, 2079688, 2719592, 3439484, 4419337, 6878968, 8838674, 11178323, 14617807, 17677348, 22356646, 29235614, 35354696, 44713292, 58471228, 89426584, 116942456, 190031491, 380062982, 760125964, 1520251928]

約数ペア:

[(1, 1520251928), (2, 760125964), (4, 380062982), (8, 190031491), (13, 116942456), (17, 89426584), (26, 58471228), (34, 44713292), (43, 35354696), (52, 29235614), (68, 22356646), (86, 17677348), (104, 14617807), (136, 11178323), (172, 8838674), (221, 6878968), (344, 4419337), (442, 3439484), (559, 2719592), (731, 2079688), (884, 1719742), (1118, 1359796), (1462, 1039844), (1768, 859871), (2236, 679898), (2924, 519922), (4472, 339949), (5848, 259961), (9503, 159976), (19006, 79988), (19997, 76024), (38012, 39994)]