1280438978

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{53}}^1\times {\mathrm{10211}}^1$

素因数の和:10299

約数の個数: 48

約数和(自身を含む): 2421959616

約数和(自身を除く): 1141520638

約数列:

[1, 2, 7, 13, 14, 26, 53, 91, 106, 169, 182, 338, 371, 689, 742, 1183, 1378, 2366, 4823, 8957, 9646, 10211, 17914, 20422, 62699, 71477, 125398, 132743, 142954, 265486, 541183, 929201, 1082366, 1725659, 1858402, 3451318, 3788281, 7035379, 7576562, 12079613, 14070758, 24159226, 49247653, 91459927, 98495306, 182919854, 640219489, 1280438978]

約数ペア:

[(1, 1280438978), (2, 640219489), (7, 182919854), (13, 98495306), (14, 91459927), (26, 49247653), (53, 24159226), (91, 14070758), (106, 12079613), (169, 7576562), (182, 7035379), (338, 3788281), (371, 3451318), (689, 1858402), (742, 1725659), (1183, 1082366), (1378, 929201), (2366, 541183), (4823, 265486), (8957, 142954), (9646, 132743), (10211, 125398), (17914, 71477), (20422, 62699)]