206640

素因数分解:

$2^4\times 3^2\times 5^1\times 7^1\times {\mathrm{41}}^1$

素因数の和:67

約数の個数: 120

約数和(自身を含む): 812448

約数和(自身を除く): 605808

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, 41, 42, 45, 48, 56, 60, 63, 70, 72, 80, 82, 84, 90, 105, 112, 120, 123, 126, 140, 144, 164, 168, 180, 205, 210, 240, 246, 252, 280, 287, 315, 328, 336, 360, 369, 410, 420, 492, 504, 560, 574, 615, 630, 656, 720, 738, 820, 840, 861, 984, 1008, 1148, 1230, 1260, 1435, 1476, 1640, 1680, 1722, 1845, 1968, 2296, 2460, 2520, 2583, 2870, 2952, 3280, 3444, 3690, 4305, 4592, 4920, 5040, 5166, 5740, 5904, 6888, 7380, 8610, 9840, 10332, 11480, 12915, 13776, 14760, 17220, 20664, 22960, 25830, 29520, 34440, 41328, 51660, 68880, 103320, 206640]

約数ペア:

[(1, 206640), (2, 103320), (3, 68880), (4, 51660), (5, 41328), (6, 34440), (7, 29520), (8, 25830), (9, 22960), (10, 20664), (12, 17220), (14, 14760), (15, 13776), (16, 12915), (18, 11480), (20, 10332), (21, 9840), (24, 8610), (28, 7380), (30, 6888), (35, 5904), (36, 5740), (40, 5166), (41, 5040), (42, 4920), (45, 4592), (48, 4305), (56, 3690), (60, 3444), (63, 3280), (70, 2952), (72, 2870), (80, 2583), (82, 2520), (84, 2460), (90, 2296), (105, 1968), (112, 1845), (120, 1722), (123, 1680), (126, 1640), (140, 1476), (144, 1435), (164, 1260), (168, 1230), (180, 1148), (205, 1008), (210, 984), (240, 861), (246, 840), (252, 820), (280, 738), (287, 720), (315, 656), (328, 630), (336, 615), (360, 574), (369, 560), (410, 504), (420, 492)]