31979982

素因数分解:

$2^1\times 3^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{61}}^1\times {\mathrm{131}}^1$

素因数の和:249

約数の個数: 64

約数和(自身を含む): 70709760

約数和(自身を除く): 38729778

約数列:

[1, 2, 3, 6, 23, 29, 46, 58, 61, 69, 87, 122, 131, 138, 174, 183, 262, 366, 393, 667, 786, 1334, 1403, 1769, 2001, 2806, 3013, 3538, 3799, 4002, 4209, 5307, 6026, 7598, 7991, 8418, 9039, 10614, 11397, 15982, 18078, 22794, 23973, 40687, 47946, 81374, 87377, 122061, 174754, 183793, 231739, 244122, 262131, 367586, 463478, 524262, 551379, 695217, 1102758, 1390434, 5329997, 10659994, 15989991, 31979982]

約数ペア:

[(1, 31979982), (2, 15989991), (3, 10659994), (6, 5329997), (23, 1390434), (29, 1102758), (46, 695217), (58, 551379), (61, 524262), (69, 463478), (87, 367586), (122, 262131), (131, 244122), (138, 231739), (174, 183793), (183, 174754), (262, 122061), (366, 87377), (393, 81374), (667, 47946), (786, 40687), (1334, 23973), (1403, 22794), (1769, 18078), (2001, 15982), (2806, 11397), (3013, 10614), (3538, 9039), (3799, 8418), (4002, 7991), (4209, 7598), (5307, 6026)]