20688007795

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{113}}^1\times {\mathrm{23669}}^1$

素因数の和:23824

約数の個数: 64

約数和(自身を含む): 32639604480

約数和(自身を除く): 11951596685

約数列:

[1, 5, 7, 13, 17, 35, 65, 85, 91, 113, 119, 221, 455, 565, 595, 791, 1105, 1469, 1547, 1921, 3955, 7345, 7735, 9605, 10283, 13447, 23669, 24973, 51415, 67235, 118345, 124865, 165683, 174811, 307697, 402373, 828415, 874055, 1538485, 2011865, 2153879, 2674597, 2816611, 5230849, 10769395, 13372985, 14083055, 18722179, 26154245, 34769761, 36615943, 45468149, 93610895, 173848805, 183079715, 227340745, 243388327, 318277043, 591085937, 1216941635, 1591385215, 2955429685, 4137601559, 20688007795]

約数ペア:

[(1, 20688007795), (5, 4137601559), (7, 2955429685), (13, 1591385215), (17, 1216941635), (35, 591085937), (65, 318277043), (85, 243388327), (91, 227340745), (113, 183079715), (119, 173848805), (221, 93610895), (455, 45468149), (565, 36615943), (595, 34769761), (791, 26154245), (1105, 18722179), (1469, 14083055), (1547, 13372985), (1921, 10769395), (3955, 5230849), (7345, 2816611), (7735, 2674597), (9605, 2153879), (10283, 2011865), (13447, 1538485), (23669, 874055), (24973, 828415), (51415, 402373), (67235, 307697), (118345, 174811), (124865, 165683)]