20377440

素因数分解:

$2^5\times 3^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{89}}^1$

素因数の和:166

約数の個数: 192

約数和(自身を含む): 73483200

約数和(自身を除く): 53105760

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 32, 36, 40, 45, 48, 53, 54, 60, 72, 80, 89, 90, 96, 106, 108, 120, 135, 144, 159, 160, 178, 180, 212, 216, 240, 265, 267, 270, 288, 318, 356, 360, 424, 432, 445, 477, 480, 530, 534, 540, 636, 712, 720, 795, 801, 848, 864, 890, 954, 1060, 1068, 1080, 1272, 1335, 1424, 1431, 1440, 1590, 1602, 1696, 1780, 1908, 2120, 2136, 2160, 2385, 2403, 2544, 2670, 2848, 2862, 3180, 3204, 3560, 3816, 4005, 4240, 4272, 4320, 4717, 4770, 4806, 5088, 5340, 5724, 6360, 6408, 7120, 7155, 7632, 8010, 8480, 8544, 9434, 9540, 9612, 10680, 11448, 12015, 12720, 12816, 14151, 14240, 14310, 15264, 16020, 18868, 19080, 19224, 21360, 22896, 23585, 24030, 25440, 25632, 28302, 28620, 32040, 37736, 38160, 38448, 42453, 42720, 45792, 47170, 48060, 56604, 57240, 64080, 70755, 75472, 76320, 76896, 84906, 94340, 96120, 113208, 114480, 127359, 128160, 141510, 150944, 169812, 188680, 192240, 212265, 226416, 228960, 254718, 283020, 339624, 377360, 384480, 424530, 452832, 509436, 566040, 636795, 679248, 754720, 849060, 1018872, 1132080, 1273590, 1358496, 1698120, 2037744, 2264160, 2547180, 3396240, 4075488, 5094360, 6792480, 10188720, 20377440]

約数ペア:

[(1, 20377440), (2, 10188720), (3, 6792480), (4, 5094360), (5, 4075488), (6, 3396240), (8, 2547180), (9, 2264160), (10, 2037744), (12, 1698120), (15, 1358496), (16, 1273590), (18, 1132080), (20, 1018872), (24, 849060), (27, 754720), (30, 679248), (32, 636795), (36, 566040), (40, 509436), (45, 452832), (48, 424530), (53, 384480), (54, 377360), (60, 339624), (72, 283020), (80, 254718), (89, 228960), (90, 226416), (96, 212265), (106, 192240), (108, 188680), (120, 169812), (135, 150944), (144, 141510), (159, 128160), (160, 127359), (178, 114480), (180, 113208), (212, 96120), (216, 94340), (240, 84906), (265, 76896), (267, 76320), (270, 75472), (288, 70755), (318, 64080), (356, 57240), (360, 56604), (424, 48060), (432, 47170), (445, 45792), (477, 42720), (480, 42453), (530, 38448), (534, 38160), (540, 37736), (636, 32040), (712, 28620), (720, 28302), (795, 25632), (801, 25440), (848, 24030), (864, 23585), (890, 22896), (954, 21360), (1060, 19224), (1068, 19080), (1080, 18868), (1272, 16020), (1335, 15264), (1424, 14310), (1431, 14240), (1440, 14151), (1590, 12816), (1602, 12720), (1696, 12015), (1780, 11448), (1908, 10680), (2120, 9612), (2136, 9540), (2160, 9434), (2385, 8544), (2403, 8480), (2544, 8010), (2670, 7632), (2848, 7155), (2862, 7120), (3180, 6408), (3204, 6360), (3560, 5724), (3816, 5340), (4005, 5088), (4240, 4806), (4272, 4770), (4320, 4717)]