20213826064

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{940703}}^1$

素因数の和:940807

約数の個数: 40

約数和(自身を含む): 41993026560

約数和(自身を除く): 21779200496

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 79, 136, 158, 272, 316, 632, 1264, 1343, 2686, 5372, 10744, 21488, 940703, 1881406, 3762812, 7525624, 15051248, 15991951, 31983902, 63967804, 74315537, 127935608, 148631074, 255871216, 297262148, 594524296, 1189048592, 1263364129, 2526728258, 5053456516, 10106913032, 20213826064]

約数ペア:

[(1, 20213826064), (2, 10106913032), (4, 5053456516), (8, 2526728258), (16, 1263364129), (17, 1189048592), (34, 594524296), (68, 297262148), (79, 255871216), (136, 148631074), (158, 127935608), (272, 74315537), (316, 63967804), (632, 31983902), (1264, 15991951), (1343, 15051248), (2686, 7525624), (5372, 3762812), (10744, 1881406), (21488, 940703)]