20177012

素因数分解:

$2^2\times {\mathrm{19}}^2\times {\mathrm{89}}^1\times {\mathrm{157}}^1$

素因数の和:288

約数の個数: 36

約数和(自身を含む): 37924740

約数和(自身を除く): 17747728

約数列:

[1, 2, 4, 19, 38, 76, 89, 157, 178, 314, 356, 361, 628, 722, 1444, 1691, 2983, 3382, 5966, 6764, 11932, 13973, 27946, 32129, 55892, 56677, 64258, 113354, 128516, 226708, 265487, 530974, 1061948, 5044253, 10088506, 20177012]

約数ペア:

[(1, 20177012), (2, 10088506), (4, 5044253), (19, 1061948), (38, 530974), (76, 265487), (89, 226708), (157, 128516), (178, 113354), (314, 64258), (356, 56677), (361, 55892), (628, 32129), (722, 27946), (1444, 13973), (1691, 11932), (2983, 6764), (3382, 5966)]