81912545

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{293}}^1$

素因数の和:362

約数の個数: 64

約数和(自身を含む): 128024064

約数和(自身を除く): 46111519

約数列:

[1, 5, 11, 13, 17, 23, 55, 65, 85, 115, 143, 187, 221, 253, 293, 299, 391, 715, 935, 1105, 1265, 1465, 1495, 1955, 2431, 3223, 3289, 3809, 4301, 4981, 5083, 6739, 12155, 16115, 16445, 19045, 21505, 24905, 25415, 33695, 41899, 54791, 55913, 64753, 74129, 87607, 114563, 209495, 273955, 279565, 323765, 370645, 438035, 572815, 712283, 963677, 1260193, 1489319, 3561415, 4818385, 6300965, 7446595, 16382509, 81912545]

約数ペア:

[(1, 81912545), (5, 16382509), (11, 7446595), (13, 6300965), (17, 4818385), (23, 3561415), (55, 1489319), (65, 1260193), (85, 963677), (115, 712283), (143, 572815), (187, 438035), (221, 370645), (253, 323765), (293, 279565), (299, 273955), (391, 209495), (715, 114563), (935, 87607), (1105, 74129), (1265, 64753), (1465, 55913), (1495, 54791), (1955, 41899), (2431, 33695), (3223, 25415), (3289, 24905), (3809, 21505), (4301, 19045), (4981, 16445), (5083, 16115), (6739, 12155)]