161440994

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{131}}^1\times {\mathrm{139}}^1$

素因数の和:327

約数の個数: 64

約数和(自身を含む): 298045440

約数和(自身を除く): 136604446

約数列:

[1, 2, 11, 13, 22, 26, 31, 62, 131, 139, 143, 262, 278, 286, 341, 403, 682, 806, 1441, 1529, 1703, 1807, 2882, 3058, 3406, 3614, 4061, 4309, 4433, 8122, 8618, 8866, 18209, 18733, 19877, 36418, 37466, 39754, 44671, 47399, 52793, 56017, 89342, 94798, 105586, 112034, 200299, 236717, 400598, 473434, 564479, 580723, 616187, 1128958, 1161446, 1232374, 2603887, 5207774, 6209269, 7338227, 12418538, 14676454, 80720497, 161440994]

約数ペア:

[(1, 161440994), (2, 80720497), (11, 14676454), (13, 12418538), (22, 7338227), (26, 6209269), (31, 5207774), (62, 2603887), (131, 1232374), (139, 1161446), (143, 1128958), (262, 616187), (278, 580723), (286, 564479), (341, 473434), (403, 400598), (682, 236717), (806, 200299), (1441, 112034), (1529, 105586), (1703, 94798), (1807, 89342), (2882, 56017), (3058, 52793), (3406, 47399), (3614, 44671), (4061, 39754), (4309, 37466), (4433, 36418), (8122, 19877), (8618, 18733), (8866, 18209)]