20187318530

素因数分解:

$2^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{73}}^1\times {\mathrm{137}}^1\times {\mathrm{2843}}^1$

素因数の和:3131

約数の個数: 64

約数和(自身を含む): 37639634688

約数和(自身を除く): 17452316158

約数列:

[1, 2, 5, 10, 71, 73, 137, 142, 146, 274, 355, 365, 685, 710, 730, 1370, 2843, 5183, 5686, 9727, 10001, 10366, 14215, 19454, 20002, 25915, 28430, 48635, 50005, 51830, 97270, 100010, 201853, 207539, 389491, 403706, 415078, 710071, 778982, 1009265, 1037695, 1420142, 1947455, 2018530, 2075390, 3550355, 3894910, 7100710, 14735269, 27653861, 28432843, 29470538, 55307722, 56865686, 73676345, 138269305, 142164215, 147352690, 276538610, 284328430, 2018731853, 4037463706, 10093659265, 20187318530]

約数ペア:

[(1, 20187318530), (2, 10093659265), (5, 4037463706), (10, 2018731853), (71, 284328430), (73, 276538610), (137, 147352690), (142, 142164215), (146, 138269305), (274, 73676345), (355, 56865686), (365, 55307722), (685, 29470538), (710, 28432843), (730, 27653861), (1370, 14735269), (2843, 7100710), (5183, 3894910), (5686, 3550355), (9727, 2075390), (10001, 2018530), (10366, 1947455), (14215, 1420142), (19454, 1037695), (20002, 1009265), (25915, 778982), (28430, 710071), (48635, 415078), (50005, 403706), (51830, 389491), (97270, 207539), (100010, 201853)]