20374640

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{137}}^1$

素因数の和:187

約数の個数: 120

約数和(自身を含む): 56366928

約数和(自身を除く): 35992288

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 16, 20, 22, 26, 40, 44, 52, 55, 65, 80, 88, 104, 110, 130, 137, 143, 169, 176, 208, 220, 260, 274, 286, 338, 440, 520, 548, 572, 676, 685, 715, 845, 880, 1040, 1096, 1144, 1352, 1370, 1430, 1507, 1690, 1781, 1859, 2192, 2288, 2704, 2740, 2860, 3014, 3380, 3562, 3718, 5480, 5720, 6028, 6760, 7124, 7436, 7535, 8905, 9295, 10960, 11440, 12056, 13520, 14248, 14872, 15070, 17810, 18590, 19591, 23153, 24112, 28496, 29744, 30140, 35620, 37180, 39182, 46306, 60280, 71240, 74360, 78364, 92612, 97955, 115765, 120560, 142480, 148720, 156728, 185224, 195910, 231530, 254683, 313456, 370448, 391820, 463060, 509366, 783640, 926120, 1018732, 1273415, 1567280, 1852240, 2037464, 2546830, 4074928, 5093660, 10187320, 20374640]

約数ペア:

[(1, 20374640), (2, 10187320), (4, 5093660), (5, 4074928), (8, 2546830), (10, 2037464), (11, 1852240), (13, 1567280), (16, 1273415), (20, 1018732), (22, 926120), (26, 783640), (40, 509366), (44, 463060), (52, 391820), (55, 370448), (65, 313456), (80, 254683), (88, 231530), (104, 195910), (110, 185224), (130, 156728), (137, 148720), (143, 142480), (169, 120560), (176, 115765), (208, 97955), (220, 92612), (260, 78364), (274, 74360), (286, 71240), (338, 60280), (440, 46306), (520, 39182), (548, 37180), (572, 35620), (676, 30140), (685, 29744), (715, 28496), (845, 24112), (880, 23153), (1040, 19591), (1096, 18590), (1144, 17810), (1352, 15070), (1370, 14872), (1430, 14248), (1507, 13520), (1690, 12056), (1781, 11440), (1859, 10960), (2192, 9295), (2288, 8905), (2704, 7535), (2740, 7436), (2860, 7124), (3014, 6760), (3380, 6028), (3562, 5720), (3718, 5480)]