19520919938

素因数分解:

$2^1\times {\mathrm{13}}^2\times {\mathrm{67}}^1\times {\mathrm{373}}^1\times {\mathrm{2311}}^1$

素因数の和:2779

約数の個数: 48

約数和(自身を含む): 32280532416

約数和(自身を除く): 12759612478

約数列:

[1, 2, 13, 26, 67, 134, 169, 338, 373, 746, 871, 1742, 2311, 4622, 4849, 9698, 11323, 22646, 24991, 30043, 49982, 60086, 63037, 126074, 154837, 309674, 324883, 390559, 649766, 781118, 862003, 1724006, 2012881, 4025762, 4223479, 8446958, 11206039, 22412078, 26167453, 52334906, 57754201, 115508402, 145678507, 291357014, 750804613, 1501609226, 9760459969, 19520919938]

約数ペア:

[(1, 19520919938), (2, 9760459969), (13, 1501609226), (26, 750804613), (67, 291357014), (134, 145678507), (169, 115508402), (338, 57754201), (373, 52334906), (746, 26167453), (871, 22412078), (1742, 11206039), (2311, 8446958), (4622, 4223479), (4849, 4025762), (9698, 2012881), (11323, 1724006), (22646, 862003), (24991, 781118), (30043, 649766), (49982, 390559), (60086, 324883), (63037, 309674), (126074, 154837)]