161282615

素因数分解:

$5^1\times {\mathrm{13}}^2\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{131}}^1$

素因数の和:240

約数の個数: 48

約数和(自身を含む): 222621696

約数和(自身を除く): 61339081

約数列:

[1, 5, 13, 31, 47, 65, 131, 155, 169, 235, 403, 611, 655, 845, 1457, 1703, 2015, 3055, 4061, 5239, 6157, 7285, 7943, 8515, 18941, 20305, 22139, 26195, 30785, 39715, 52793, 80041, 94705, 110695, 190867, 246233, 263965, 400205, 686309, 954335, 1040533, 1231165, 2481271, 3431545, 5202665, 12406355, 32256523, 161282615]

約数ペア:

[(1, 161282615), (5, 32256523), (13, 12406355), (31, 5202665), (47, 3431545), (65, 2481271), (131, 1231165), (155, 1040533), (169, 954335), (235, 686309), (403, 400205), (611, 263965), (655, 246233), (845, 190867), (1457, 110695), (1703, 94705), (2015, 80041), (3055, 52793), (4061, 39715), (5239, 30785), (6157, 26195), (7285, 22139), (7943, 20305), (8515, 18941)]