261564465

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{151}}^1\times {\mathrm{6793}}^1$

素因数の和:6969

約数の個数: 32

約数和(自身を含む): 446121216

約数和(自身を除く): 184556751

約数列:

[1, 3, 5, 15, 17, 51, 85, 151, 255, 453, 755, 2265, 2567, 6793, 7701, 12835, 20379, 33965, 38505, 101895, 115481, 346443, 577405, 1025743, 1732215, 3077229, 5128715, 15386145, 17437631, 52312893, 87188155, 261564465]

約数ペア:

[(1, 261564465), (3, 87188155), (5, 52312893), (15, 17437631), (17, 15386145), (51, 5128715), (85, 3077229), (151, 1732215), (255, 1025743), (453, 577405), (755, 346443), (2265, 115481), (2567, 101895), (6793, 38505), (7701, 33965), (12835, 20379)]