81532080

素因数分解:

$2^4\times 3^2\times 5^1\times 7^2\times {\mathrm{2311}}^1$

素因数の和:2344

約数の個数: 180

約数和(自身を含む): 318653712

約数和(自身を除く): 237121632

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 35, 36, 40, 42, 45, 48, 49, 56, 60, 63, 70, 72, 80, 84, 90, 98, 105, 112, 120, 126, 140, 144, 147, 168, 180, 196, 210, 240, 245, 252, 280, 294, 315, 336, 360, 392, 420, 441, 490, 504, 560, 588, 630, 720, 735, 784, 840, 882, 980, 1008, 1176, 1260, 1470, 1680, 1764, 1960, 2205, 2311, 2352, 2520, 2940, 3528, 3920, 4410, 4622, 5040, 5880, 6933, 7056, 8820, 9244, 11555, 11760, 13866, 16177, 17640, 18488, 20799, 23110, 27732, 32354, 34665, 35280, 36976, 41598, 46220, 48531, 55464, 64708, 69330, 80885, 83196, 92440, 97062, 103995, 110928, 113239, 129416, 138660, 145593, 161770, 166392, 184880, 194124, 207990, 226478, 242655, 258832, 277320, 291186, 323540, 332784, 339717, 388248, 415980, 452956, 485310, 554640, 566195, 582372, 647080, 679434, 727965, 776496, 831960, 905912, 970620, 1019151, 1132390, 1164744, 1294160, 1358868, 1455930, 1663920, 1698585, 1811824, 1941240, 2038302, 2264780, 2329488, 2717736, 2911860, 3397170, 3882480, 4076604, 4529560, 5095755, 5435472, 5823720, 6794340, 8153208, 9059120, 10191510, 11647440, 13588680, 16306416, 20383020, 27177360, 40766040, 81532080]

約数ペア:

[(1, 81532080), (2, 40766040), (3, 27177360), (4, 20383020), (5, 16306416), (6, 13588680), (7, 11647440), (8, 10191510), (9, 9059120), (10, 8153208), (12, 6794340), (14, 5823720), (15, 5435472), (16, 5095755), (18, 4529560), (20, 4076604), (21, 3882480), (24, 3397170), (28, 2911860), (30, 2717736), (35, 2329488), (36, 2264780), (40, 2038302), (42, 1941240), (45, 1811824), (48, 1698585), (49, 1663920), (56, 1455930), (60, 1358868), (63, 1294160), (70, 1164744), (72, 1132390), (80, 1019151), (84, 970620), (90, 905912), (98, 831960), (105, 776496), (112, 727965), (120, 679434), (126, 647080), (140, 582372), (144, 566195), (147, 554640), (168, 485310), (180, 452956), (196, 415980), (210, 388248), (240, 339717), (245, 332784), (252, 323540), (280, 291186), (294, 277320), (315, 258832), (336, 242655), (360, 226478), (392, 207990), (420, 194124), (441, 184880), (490, 166392), (504, 161770), (560, 145593), (588, 138660), (630, 129416), (720, 113239), (735, 110928), (784, 103995), (840, 97062), (882, 92440), (980, 83196), (1008, 80885), (1176, 69330), (1260, 64708), (1470, 55464), (1680, 48531), (1764, 46220), (1960, 41598), (2205, 36976), (2311, 35280), (2352, 34665), (2520, 32354), (2940, 27732), (3528, 23110), (3920, 20799), (4410, 18488), (4622, 17640), (5040, 16177), (5880, 13866), (6933, 11760), (7056, 11555), (8820, 9244)]