81273260

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{547}}^1$

素因数の和:615

約数の個数: 96

約数和(自身を含む): 198858240

約数和(自身を除く): 117584980

約数列:

[1, 2, 4, 5, 10, 17, 19, 20, 23, 34, 38, 46, 68, 76, 85, 92, 95, 115, 170, 190, 230, 323, 340, 380, 391, 437, 460, 547, 646, 782, 874, 1094, 1292, 1564, 1615, 1748, 1955, 2185, 2188, 2735, 3230, 3910, 4370, 5470, 6460, 7429, 7820, 8740, 9299, 10393, 10940, 12581, 14858, 18598, 20786, 25162, 29716, 37145, 37196, 41572, 46495, 50324, 51965, 62905, 74290, 92990, 103930, 125810, 148580, 176681, 185980, 207860, 213877, 239039, 251620, 353362, 427754, 478078, 706724, 855508, 883405, 956156, 1069385, 1195195, 1766810, 2138770, 2390390, 3533620, 4063663, 4277540, 4780780, 8127326, 16254652, 20318315, 40636630, 81273260]

約数ペア:

[(1, 81273260), (2, 40636630), (4, 20318315), (5, 16254652), (10, 8127326), (17, 4780780), (19, 4277540), (20, 4063663), (23, 3533620), (34, 2390390), (38, 2138770), (46, 1766810), (68, 1195195), (76, 1069385), (85, 956156), (92, 883405), (95, 855508), (115, 706724), (170, 478078), (190, 427754), (230, 353362), (323, 251620), (340, 239039), (380, 213877), (391, 207860), (437, 185980), (460, 176681), (547, 148580), (646, 125810), (782, 103930), (874, 92990), (1094, 74290), (1292, 62905), (1564, 51965), (1615, 50324), (1748, 46495), (1955, 41572), (2185, 37196), (2188, 37145), (2735, 29716), (3230, 25162), (3910, 20786), (4370, 18598), (5470, 14858), (6460, 12581), (7429, 10940), (7820, 10393), (8740, 9299)]