18704770

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{59}}^1\times {\mathrm{647}}^1$

素因数の和:727

約数の個数: 48

約数和(自身を含む): 39890880

約数和(自身を除く): 21186110

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 59, 70, 98, 118, 245, 295, 413, 490, 590, 647, 826, 1294, 2065, 2891, 3235, 4130, 4529, 5782, 6470, 9058, 14455, 22645, 28910, 31703, 38173, 45290, 63406, 76346, 158515, 190865, 267211, 317030, 381730, 534422, 1336055, 1870477, 2672110, 3740954, 9352385, 18704770]

約数ペア:

[(1, 18704770), (2, 9352385), (5, 3740954), (7, 2672110), (10, 1870477), (14, 1336055), (35, 534422), (49, 381730), (59, 317030), (70, 267211), (98, 190865), (118, 158515), (245, 76346), (295, 63406), (413, 45290), (490, 38173), (590, 31703), (647, 28910), (826, 22645), (1294, 14455), (2065, 9058), (2891, 6470), (3235, 5782), (4130, 4529)]