20367002890

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^3\times {\mathrm{43}}^1\times {\mathrm{21559}}^1$

素因数の和:21648

約数の個数: 64

約数和(自身を含む): 40639737600

約数和(自身を除く): 20272734710

約数列:

[1, 2, 5, 10, 13, 26, 43, 65, 86, 130, 169, 215, 338, 430, 559, 845, 1118, 1690, 2197, 2795, 4394, 5590, 7267, 10985, 14534, 21559, 21970, 36335, 43118, 72670, 94471, 107795, 188942, 215590, 280267, 472355, 560534, 927037, 944710, 1401335, 1854074, 2802670, 3643471, 4635185, 7286942, 9270370, 12051481, 18217355, 24102962, 36434710, 47365123, 60257405, 94730246, 120514810, 156669253, 236825615, 313338506, 473651230, 783346265, 1566692530, 2036700289, 4073400578, 10183501445, 20367002890]

約数ペア:

[(1, 20367002890), (2, 10183501445), (5, 4073400578), (10, 2036700289), (13, 1566692530), (26, 783346265), (43, 473651230), (65, 313338506), (86, 236825615), (130, 156669253), (169, 120514810), (215, 94730246), (338, 60257405), (430, 47365123), (559, 36434710), (845, 24102962), (1118, 18217355), (1690, 12051481), (2197, 9270370), (2795, 7286942), (4394, 4635185), (5590, 3643471), (7267, 2802670), (10985, 1854074), (14534, 1401335), (21559, 944710), (21970, 927037), (36335, 560534), (43118, 472355), (72670, 280267), (94471, 215590), (107795, 188942)]