18907560

素因数分解:

$2^3\times 3^3\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{61}}^1$

素因数の和:129

約数の個数: 256

約数和(自身を含む): 74995200

約数和(自身を除く): 56087640

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, 40, 41, 42, 45, 54, 56, 60, 61, 63, 70, 72, 82, 84, 90, 105, 108, 120, 122, 123, 126, 135, 140, 164, 168, 180, 183, 189, 205, 210, 216, 244, 246, 252, 270, 280, 287, 305, 315, 328, 360, 366, 369, 378, 410, 420, 427, 488, 492, 504, 540, 549, 574, 610, 615, 630, 732, 738, 756, 820, 840, 854, 861, 915, 945, 984, 1080, 1098, 1107, 1148, 1220, 1230, 1260, 1281, 1435, 1464, 1476, 1512, 1640, 1647, 1708, 1722, 1830, 1845, 1890, 2135, 2196, 2214, 2296, 2440, 2460, 2501, 2520, 2562, 2583, 2745, 2870, 2952, 3294, 3416, 3444, 3660, 3690, 3780, 3843, 4270, 4305, 4392, 4428, 4920, 5002, 5124, 5166, 5490, 5535, 5740, 6405, 6588, 6888, 7320, 7380, 7503, 7560, 7686, 7749, 8235, 8540, 8610, 8856, 10004, 10248, 10332, 10980, 11070, 11480, 11529, 12505, 12810, 12915, 13176, 14760, 15006, 15372, 15498, 16470, 17080, 17220, 17507, 19215, 20008, 20664, 21960, 22140, 22509, 23058, 25010, 25620, 25830, 30012, 30744, 30996, 32940, 34440, 35014, 37515, 38430, 38745, 44280, 45018, 46116, 50020, 51240, 51660, 52521, 57645, 60024, 61992, 65880, 67527, 70028, 75030, 76860, 77490, 87535, 90036, 92232, 100040, 103320, 105042, 112545, 115290, 135054, 140056, 150060, 153720, 154980, 157563, 175070, 180072, 210084, 225090, 230580, 262605, 270108, 300120, 309960, 315126, 337635, 350140, 420168, 450180, 461160, 472689, 525210, 540216, 630252, 675270, 700280, 787815, 900360, 945378, 1050420, 1260504, 1350540, 1575630, 1890756, 2100840, 2363445, 2701080, 3151260, 3781512, 4726890, 6302520, 9453780, 18907560]

約数ペア:

[(1, 18907560), (2, 9453780), (3, 6302520), (4, 4726890), (5, 3781512), (6, 3151260), (7, 2701080), (8, 2363445), (9, 2100840), (10, 1890756), (12, 1575630), (14, 1350540), (15, 1260504), (18, 1050420), (20, 945378), (21, 900360), (24, 787815), (27, 700280), (28, 675270), (30, 630252), (35, 540216), (36, 525210), (40, 472689), (41, 461160), (42, 450180), (45, 420168), (54, 350140), (56, 337635), (60, 315126), (61, 309960), (63, 300120), (70, 270108), (72, 262605), (82, 230580), (84, 225090), (90, 210084), (105, 180072), (108, 175070), (120, 157563), (122, 154980), (123, 153720), (126, 150060), (135, 140056), (140, 135054), (164, 115290), (168, 112545), (180, 105042), (183, 103320), (189, 100040), (205, 92232), (210, 90036), (216, 87535), (244, 77490), (246, 76860), (252, 75030), (270, 70028), (280, 67527), (287, 65880), (305, 61992), (315, 60024), (328, 57645), (360, 52521), (366, 51660), (369, 51240), (378, 50020), (410, 46116), (420, 45018), (427, 44280), (488, 38745), (492, 38430), (504, 37515), (540, 35014), (549, 34440), (574, 32940), (610, 30996), (615, 30744), (630, 30012), (732, 25830), (738, 25620), (756, 25010), (820, 23058), (840, 22509), (854, 22140), (861, 21960), (915, 20664), (945, 20008), (984, 19215), (1080, 17507), (1098, 17220), (1107, 17080), (1148, 16470), (1220, 15498), (1230, 15372), (1260, 15006), (1281, 14760), (1435, 13176), (1464, 12915), (1476, 12810), (1512, 12505), (1640, 11529), (1647, 11480), (1708, 11070), (1722, 10980), (1830, 10332), (1845, 10248), (1890, 10004), (2135, 8856), (2196, 8610), (2214, 8540), (2296, 8235), (2440, 7749), (2460, 7686), (2501, 7560), (2520, 7503), (2562, 7380), (2583, 7320), (2745, 6888), (2870, 6588), (2952, 6405), (3294, 5740), (3416, 5535), (3444, 5490), (3660, 5166), (3690, 5124), (3780, 5002), (3843, 4920), (4270, 4428), (4305, 4392)]