18874260

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{97}}^1$

素因数の和:182

約数の個数: 144

約数和(自身を含む): 61641216

約数和(自身を除く): 42766956

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 23, 30, 36, 45, 46, 47, 60, 69, 90, 92, 94, 97, 115, 138, 141, 180, 188, 194, 207, 230, 235, 276, 282, 291, 345, 388, 414, 423, 460, 470, 485, 564, 582, 690, 705, 828, 846, 873, 940, 970, 1035, 1081, 1164, 1380, 1410, 1455, 1692, 1746, 1940, 2070, 2115, 2162, 2231, 2820, 2910, 3243, 3492, 4140, 4230, 4324, 4365, 4462, 4559, 5405, 5820, 6486, 6693, 8460, 8730, 8924, 9118, 9729, 10810, 11155, 12972, 13386, 13677, 16215, 17460, 18236, 19458, 20079, 21620, 22310, 22795, 26772, 27354, 32430, 33465, 38916, 40158, 41031, 44620, 45590, 48645, 54708, 64860, 66930, 68385, 80316, 82062, 91180, 97290, 100395, 104857, 133860, 136770, 164124, 194580, 200790, 205155, 209714, 273540, 314571, 401580, 410310, 419428, 524285, 629142, 820620, 943713, 1048570, 1258284, 1572855, 1887426, 2097140, 3145710, 3774852, 4718565, 6291420, 9437130, 18874260]

約数ペア:

[(1, 18874260), (2, 9437130), (3, 6291420), (4, 4718565), (5, 3774852), (6, 3145710), (9, 2097140), (10, 1887426), (12, 1572855), (15, 1258284), (18, 1048570), (20, 943713), (23, 820620), (30, 629142), (36, 524285), (45, 419428), (46, 410310), (47, 401580), (60, 314571), (69, 273540), (90, 209714), (92, 205155), (94, 200790), (97, 194580), (115, 164124), (138, 136770), (141, 133860), (180, 104857), (188, 100395), (194, 97290), (207, 91180), (230, 82062), (235, 80316), (276, 68385), (282, 66930), (291, 64860), (345, 54708), (388, 48645), (414, 45590), (423, 44620), (460, 41031), (470, 40158), (485, 38916), (564, 33465), (582, 32430), (690, 27354), (705, 26772), (828, 22795), (846, 22310), (873, 21620), (940, 20079), (970, 19458), (1035, 18236), (1081, 17460), (1164, 16215), (1380, 13677), (1410, 13386), (1455, 12972), (1692, 11155), (1746, 10810), (1940, 9729), (2070, 9118), (2115, 8924), (2162, 8730), (2231, 8460), (2820, 6693), (2910, 6486), (3243, 5820), (3492, 5405), (4140, 4559), (4230, 4462), (4324, 4365)]