81814460

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{44953}}^1$

素因数の和:44982

約数の個数: 48

約数和(自身を含む): 211463616

約数和(自身を除く): 129649156

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 91, 130, 140, 182, 260, 364, 455, 910, 1820, 44953, 89906, 179812, 224765, 314671, 449530, 584389, 629342, 899060, 1168778, 1258684, 1573355, 2337556, 2921945, 3146710, 4090723, 5843890, 6293420, 8181446, 11687780, 16362892, 20453615, 40907230, 81814460]

約数ペア:

[(1, 81814460), (2, 40907230), (4, 20453615), (5, 16362892), (7, 11687780), (10, 8181446), (13, 6293420), (14, 5843890), (20, 4090723), (26, 3146710), (28, 2921945), (35, 2337556), (52, 1573355), (65, 1258684), (70, 1168778), (91, 899060), (130, 629342), (140, 584389), (182, 449530), (260, 314671), (364, 224765), (455, 179812), (910, 89906), (1820, 44953)]