20100321880

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{2153}}^1\times {\mathrm{7529}}^1$

素因数の和:9724

約数の個数: 64

約数和(自身を含む): 46712505600

約数和(自身を除く): 26612183720

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 2153, 4306, 7529, 8612, 10765, 15058, 17224, 21530, 30116, 37645, 43060, 60232, 66743, 75290, 86120, 133486, 150580, 233399, 266972, 301160, 333715, 466798, 533944, 667430, 933596, 1166995, 1334860, 1867192, 2333990, 2669720, 4667980, 9335960, 16209937, 32419874, 64839748, 81049685, 129679496, 162099370, 324198740, 502508047, 648397480, 1005016094, 2010032188, 2512540235, 4020064376, 5025080470, 10050160940, 20100321880]

約数ペア:

[(1, 20100321880), (2, 10050160940), (4, 5025080470), (5, 4020064376), (8, 2512540235), (10, 2010032188), (20, 1005016094), (31, 648397480), (40, 502508047), (62, 324198740), (124, 162099370), (155, 129679496), (248, 81049685), (310, 64839748), (620, 32419874), (1240, 16209937), (2153, 9335960), (4306, 4667980), (7529, 2669720), (8612, 2333990), (10765, 1867192), (15058, 1334860), (17224, 1166995), (21530, 933596), (30116, 667430), (37645, 533944), (43060, 466798), (60232, 333715), (66743, 301160), (75290, 266972), (86120, 233399), (133486, 150580)]