18741240

素因数分解:

$2^3\times 3^3\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{67}}^1$

素因数の和:131

約数の個数: 256

約数和(自身を含む): 74419200

約数和(自身を除く): 55677960

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 27, 28, 30, 35, 36, 37, 40, 42, 45, 54, 56, 60, 63, 67, 70, 72, 74, 84, 90, 105, 108, 111, 120, 126, 134, 135, 140, 148, 168, 180, 185, 189, 201, 210, 216, 222, 252, 259, 268, 270, 280, 296, 315, 333, 335, 360, 370, 378, 402, 420, 444, 469, 504, 518, 536, 540, 555, 603, 630, 666, 670, 740, 756, 777, 804, 840, 888, 938, 945, 999, 1005, 1036, 1080, 1110, 1206, 1260, 1295, 1332, 1340, 1407, 1480, 1512, 1554, 1608, 1665, 1809, 1876, 1890, 1998, 2010, 2072, 2220, 2331, 2345, 2412, 2479, 2520, 2590, 2664, 2680, 2814, 3015, 3108, 3330, 3618, 3752, 3780, 3885, 3996, 4020, 4221, 4440, 4662, 4690, 4824, 4958, 4995, 5180, 5628, 6030, 6216, 6660, 6993, 7035, 7236, 7437, 7560, 7770, 7992, 8040, 8442, 9045, 9324, 9380, 9916, 9990, 10360, 11256, 11655, 12060, 12395, 12663, 13320, 13986, 14070, 14472, 14874, 15540, 16884, 17353, 18090, 18648, 18760, 19832, 19980, 21105, 22311, 23310, 24120, 24790, 25326, 27972, 28140, 29748, 31080, 33768, 34706, 34965, 36180, 37185, 39960, 42210, 44622, 46620, 49580, 50652, 52059, 55944, 56280, 59496, 63315, 66933, 69412, 69930, 72360, 74370, 84420, 86765, 89244, 93240, 99160, 101304, 104118, 111555, 126630, 133866, 138824, 139860, 148740, 156177, 168840, 173530, 178488, 208236, 223110, 253260, 260295, 267732, 279720, 297480, 312354, 334665, 347060, 416472, 446220, 468531, 506520, 520590, 535464, 624708, 669330, 694120, 780885, 892440, 937062, 1041180, 1249416, 1338660, 1561770, 1874124, 2082360, 2342655, 2677320, 3123540, 3748248, 4685310, 6247080, 9370620, 18741240]

約数ペア:

[(1, 18741240), (2, 9370620), (3, 6247080), (4, 4685310), (5, 3748248), (6, 3123540), (7, 2677320), (8, 2342655), (9, 2082360), (10, 1874124), (12, 1561770), (14, 1338660), (15, 1249416), (18, 1041180), (20, 937062), (21, 892440), (24, 780885), (27, 694120), (28, 669330), (30, 624708), (35, 535464), (36, 520590), (37, 506520), (40, 468531), (42, 446220), (45, 416472), (54, 347060), (56, 334665), (60, 312354), (63, 297480), (67, 279720), (70, 267732), (72, 260295), (74, 253260), (84, 223110), (90, 208236), (105, 178488), (108, 173530), (111, 168840), (120, 156177), (126, 148740), (134, 139860), (135, 138824), (140, 133866), (148, 126630), (168, 111555), (180, 104118), (185, 101304), (189, 99160), (201, 93240), (210, 89244), (216, 86765), (222, 84420), (252, 74370), (259, 72360), (268, 69930), (270, 69412), (280, 66933), (296, 63315), (315, 59496), (333, 56280), (335, 55944), (360, 52059), (370, 50652), (378, 49580), (402, 46620), (420, 44622), (444, 42210), (469, 39960), (504, 37185), (518, 36180), (536, 34965), (540, 34706), (555, 33768), (603, 31080), (630, 29748), (666, 28140), (670, 27972), (740, 25326), (756, 24790), (777, 24120), (804, 23310), (840, 22311), (888, 21105), (938, 19980), (945, 19832), (999, 18760), (1005, 18648), (1036, 18090), (1080, 17353), (1110, 16884), (1206, 15540), (1260, 14874), (1295, 14472), (1332, 14070), (1340, 13986), (1407, 13320), (1480, 12663), (1512, 12395), (1554, 12060), (1608, 11655), (1665, 11256), (1809, 10360), (1876, 9990), (1890, 9916), (1998, 9380), (2010, 9324), (2072, 9045), (2220, 8442), (2331, 8040), (2345, 7992), (2412, 7770), (2479, 7560), (2520, 7437), (2590, 7236), (2664, 7035), (2680, 6993), (2814, 6660), (3015, 6216), (3108, 6030), (3330, 5628), (3618, 5180), (3752, 4995), (3780, 4958), (3885, 4824), (3996, 4690), (4020, 4662), (4221, 4440)]