71720220

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{643}}^1$

素因数の和:692

約数の個数: 144

約数和(自身を含む): 237589632

約数和(自身を除く): 165869412

約数列:

[1, 2, 3, 4, 5, 6, 10, 11, 12, 13, 15, 20, 22, 26, 30, 33, 39, 44, 52, 55, 60, 65, 66, 78, 110, 130, 132, 143, 156, 165, 169, 195, 220, 260, 286, 330, 338, 390, 429, 507, 572, 643, 660, 676, 715, 780, 845, 858, 1014, 1286, 1430, 1690, 1716, 1859, 1929, 2028, 2145, 2535, 2572, 2860, 3215, 3380, 3718, 3858, 4290, 5070, 5577, 6430, 7073, 7436, 7716, 8359, 8580, 9295, 9645, 10140, 11154, 12860, 14146, 16718, 18590, 19290, 21219, 22308, 25077, 27885, 28292, 33436, 35365, 37180, 38580, 41795, 42438, 50154, 55770, 70730, 83590, 84876, 91949, 100308, 106095, 108667, 111540, 125385, 141460, 167180, 183898, 212190, 217334, 250770, 275847, 326001, 367796, 424380, 434668, 459745, 501540, 543335, 551694, 652002, 919490, 1086670, 1103388, 1195337, 1304004, 1379235, 1630005, 1838980, 2173340, 2390674, 2758470, 3260010, 3586011, 4781348, 5516940, 5976685, 6520020, 7172022, 11953370, 14344044, 17930055, 23906740, 35860110, 71720220]

約数ペア:

[(1, 71720220), (2, 35860110), (3, 23906740), (4, 17930055), (5, 14344044), (6, 11953370), (10, 7172022), (11, 6520020), (12, 5976685), (13, 5516940), (15, 4781348), (20, 3586011), (22, 3260010), (26, 2758470), (30, 2390674), (33, 2173340), (39, 1838980), (44, 1630005), (52, 1379235), (55, 1304004), (60, 1195337), (65, 1103388), (66, 1086670), (78, 919490), (110, 652002), (130, 551694), (132, 543335), (143, 501540), (156, 459745), (165, 434668), (169, 424380), (195, 367796), (220, 326001), (260, 275847), (286, 250770), (330, 217334), (338, 212190), (390, 183898), (429, 167180), (507, 141460), (572, 125385), (643, 111540), (660, 108667), (676, 106095), (715, 100308), (780, 91949), (845, 84876), (858, 83590), (1014, 70730), (1286, 55770), (1430, 50154), (1690, 42438), (1716, 41795), (1859, 38580), (1929, 37180), (2028, 35365), (2145, 33436), (2535, 28292), (2572, 27885), (2860, 25077), (3215, 22308), (3380, 21219), (3718, 19290), (3858, 18590), (4290, 16718), (5070, 14146), (5577, 12860), (6430, 11154), (7073, 10140), (7436, 9645), (7716, 9295), (8359, 8580)]