71681225

素因数分解:

$5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{1619}}^1$

素因数の和:1670

約数の個数: 48

約数和(自身を含む): 115706880

約数和(自身を除く): 44025655

約数列:

[1, 5, 7, 11, 23, 25, 35, 55, 77, 115, 161, 175, 253, 275, 385, 575, 805, 1265, 1619, 1771, 1925, 4025, 6325, 8095, 8855, 11333, 17809, 37237, 40475, 44275, 56665, 89045, 124663, 186185, 260659, 283325, 409607, 445225, 623315, 930925, 1303295, 2048035, 2867249, 3116575, 6516475, 10240175, 14336245, 71681225]

約数ペア:

[(1, 71681225), (5, 14336245), (7, 10240175), (11, 6516475), (23, 3116575), (25, 2867249), (35, 2048035), (55, 1303295), (77, 930925), (115, 623315), (161, 445225), (175, 409607), (253, 283325), (275, 260659), (385, 186185), (575, 124663), (805, 89045), (1265, 56665), (1619, 44275), (1771, 40475), (1925, 37237), (4025, 17809), (6325, 11333), (8095, 8855)]