81641910

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{12541}}^1$

素因数の和:12589

約数の個数: 64

約数和(自身を含む): 231174144

約数和(自身を除く): 149532234

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 31, 35, 42, 62, 70, 93, 105, 155, 186, 210, 217, 310, 434, 465, 651, 930, 1085, 1302, 2170, 3255, 6510, 12541, 25082, 37623, 62705, 75246, 87787, 125410, 175574, 188115, 263361, 376230, 388771, 438935, 526722, 777542, 877870, 1166313, 1316805, 1943855, 2332626, 2633610, 2721397, 3887710, 5442794, 5831565, 8164191, 11663130, 13606985, 16328382, 27213970, 40820955, 81641910]

約数ペア:

[(1, 81641910), (2, 40820955), (3, 27213970), (5, 16328382), (6, 13606985), (7, 11663130), (10, 8164191), (14, 5831565), (15, 5442794), (21, 3887710), (30, 2721397), (31, 2633610), (35, 2332626), (42, 1943855), (62, 1316805), (70, 1166313), (93, 877870), (105, 777542), (155, 526722), (186, 438935), (210, 388771), (217, 376230), (310, 263361), (434, 188115), (465, 175574), (651, 125410), (930, 87787), (1085, 75246), (1302, 62705), (2170, 37623), (3255, 25082), (6510, 12541)]