20123078990

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{131}}^1\times {\mathrm{2194447}}^1$

素因数の和:2194592

約数の個数: 32

約数和(自身を含む): 41712067584

約数和(自身を除く): 21588988594

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 131, 262, 655, 917, 1310, 1834, 4585, 9170, 2194447, 4388894, 10972235, 15361129, 21944470, 30722258, 76805645, 153611290, 287472557, 574945114, 1437362785, 2012307899, 2874725570, 4024615798, 10061539495, 20123078990]

約数ペア:

[(1, 20123078990), (2, 10061539495), (5, 4024615798), (7, 2874725570), (10, 2012307899), (14, 1437362785), (35, 574945114), (70, 287472557), (131, 153611290), (262, 76805645), (655, 30722258), (917, 21944470), (1310, 15361129), (1834, 10972235), (4585, 4388894), (9170, 2194447)]