128421748

素因数分解:

$2^2\times 7^2\times {\mathrm{13}}^2\times {\mathrm{3877}}^1$

素因数の和:3921

約数の個数: 54

約数和(自身を含む): 283159926

約数和(自身を除く): 154738178

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 49, 52, 91, 98, 169, 182, 196, 338, 364, 637, 676, 1183, 1274, 2366, 2548, 3877, 4732, 7754, 8281, 15508, 16562, 27139, 33124, 50401, 54278, 100802, 108556, 189973, 201604, 352807, 379946, 655213, 705614, 759892, 1310426, 1411228, 2469649, 2620852, 4586491, 4939298, 9172982, 9878596, 18345964, 32105437, 64210874, 128421748]

約数ペア:

[(1, 128421748), (2, 64210874), (4, 32105437), (7, 18345964), (13, 9878596), (14, 9172982), (26, 4939298), (28, 4586491), (49, 2620852), (52, 2469649), (91, 1411228), (98, 1310426), (169, 759892), (182, 705614), (196, 655213), (338, 379946), (364, 352807), (637, 201604), (676, 189973), (1183, 108556), (1274, 100802), (2366, 54278), (2548, 50401), (3877, 33124), (4732, 27139), (7754, 16562), (8281, 15508)]