81485820

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{359}}^1$

素因数の和:484

約数の個数: 144

約数和(自身を含む): 269680320

約数和(自身を除く): 188194500

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 30, 36, 39, 45, 52, 60, 65, 78, 90, 97, 117, 130, 156, 180, 194, 195, 234, 260, 291, 359, 388, 390, 468, 485, 582, 585, 718, 780, 873, 970, 1077, 1164, 1170, 1261, 1436, 1455, 1746, 1795, 1940, 2154, 2340, 2522, 2910, 3231, 3492, 3590, 3783, 4308, 4365, 4667, 5044, 5385, 5820, 6305, 6462, 7180, 7566, 8730, 9334, 10770, 11349, 12610, 12924, 14001, 15132, 16155, 17460, 18668, 18915, 21540, 22698, 23335, 25220, 28002, 32310, 34823, 37830, 42003, 45396, 46670, 56004, 56745, 64620, 69646, 70005, 75660, 84006, 93340, 104469, 113490, 139292, 140010, 168012, 174115, 208938, 210015, 226980, 280020, 313407, 348230, 417876, 420030, 452699, 522345, 626814, 696460, 840060, 905398, 1044690, 1253628, 1358097, 1567035, 1810796, 2089380, 2263495, 2716194, 3134070, 4074291, 4526990, 5432388, 6268140, 6790485, 8148582, 9053980, 13580970, 16297164, 20371455, 27161940, 40742910, 81485820]

約数ペア:

[(1, 81485820), (2, 40742910), (3, 27161940), (4, 20371455), (5, 16297164), (6, 13580970), (9, 9053980), (10, 8148582), (12, 6790485), (13, 6268140), (15, 5432388), (18, 4526990), (20, 4074291), (26, 3134070), (30, 2716194), (36, 2263495), (39, 2089380), (45, 1810796), (52, 1567035), (60, 1358097), (65, 1253628), (78, 1044690), (90, 905398), (97, 840060), (117, 696460), (130, 626814), (156, 522345), (180, 452699), (194, 420030), (195, 417876), (234, 348230), (260, 313407), (291, 280020), (359, 226980), (388, 210015), (390, 208938), (468, 174115), (485, 168012), (582, 140010), (585, 139292), (718, 113490), (780, 104469), (873, 93340), (970, 84006), (1077, 75660), (1164, 70005), (1170, 69646), (1261, 64620), (1436, 56745), (1455, 56004), (1746, 46670), (1795, 45396), (1940, 42003), (2154, 37830), (2340, 34823), (2522, 32310), (2910, 28002), (3231, 25220), (3492, 23335), (3590, 22698), (3783, 21540), (4308, 18915), (4365, 18668), (4667, 17460), (5044, 16155), (5385, 15132), (5820, 14001), (6305, 12924), (6462, 12610), (7180, 11349), (7566, 10770), (8730, 9334)]