81243396

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{2591}}^1$

素因数の和:2681

約数の個数: 72

約数和(自身を含む): 224550144

約数和(自身を除く): 143306748

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 39, 52, 67, 78, 117, 134, 156, 201, 234, 268, 402, 468, 603, 804, 871, 1206, 1742, 2412, 2591, 2613, 3484, 5182, 5226, 7773, 7839, 10364, 10452, 15546, 15678, 23319, 31092, 31356, 33683, 46638, 67366, 93276, 101049, 134732, 173597, 202098, 303147, 347194, 404196, 520791, 606294, 694388, 1041582, 1212588, 1562373, 2083164, 2256761, 3124746, 4513522, 6249492, 6770283, 9027044, 13540566, 20310849, 27081132, 40621698, 81243396]

約数ペア:

[(1, 81243396), (2, 40621698), (3, 27081132), (4, 20310849), (6, 13540566), (9, 9027044), (12, 6770283), (13, 6249492), (18, 4513522), (26, 3124746), (36, 2256761), (39, 2083164), (52, 1562373), (67, 1212588), (78, 1041582), (117, 694388), (134, 606294), (156, 520791), (201, 404196), (234, 347194), (268, 303147), (402, 202098), (468, 173597), (603, 134732), (804, 101049), (871, 93276), (1206, 67366), (1742, 46638), (2412, 33683), (2591, 31356), (2613, 31092), (3484, 23319), (5182, 15678), (5226, 15546), (7773, 10452), (7839, 10364)]