18705720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{383}}^1$

素因数の和:445

約数の個数: 128

約数和(自身を含む): 63037440

約数和(自身を除く): 44331720

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 20, 22, 24, 30, 33, 37, 40, 44, 55, 60, 66, 74, 88, 110, 111, 120, 132, 148, 165, 185, 220, 222, 264, 296, 330, 370, 383, 407, 440, 444, 555, 660, 740, 766, 814, 888, 1110, 1149, 1221, 1320, 1480, 1532, 1628, 1915, 2035, 2220, 2298, 2442, 3064, 3256, 3830, 4070, 4213, 4440, 4596, 4884, 5745, 6105, 7660, 8140, 8426, 9192, 9768, 11490, 12210, 12639, 14171, 15320, 16280, 16852, 21065, 22980, 24420, 25278, 28342, 33704, 42130, 42513, 45960, 48840, 50556, 56684, 63195, 70855, 84260, 85026, 101112, 113368, 126390, 141710, 155881, 168520, 170052, 212565, 252780, 283420, 311762, 340104, 425130, 467643, 505560, 566840, 623524, 779405, 850260, 935286, 1247048, 1558810, 1700520, 1870572, 2338215, 3117620, 3741144, 4676430, 6235240, 9352860, 18705720]

約数ペア:

[(1, 18705720), (2, 9352860), (3, 6235240), (4, 4676430), (5, 3741144), (6, 3117620), (8, 2338215), (10, 1870572), (11, 1700520), (12, 1558810), (15, 1247048), (20, 935286), (22, 850260), (24, 779405), (30, 623524), (33, 566840), (37, 505560), (40, 467643), (44, 425130), (55, 340104), (60, 311762), (66, 283420), (74, 252780), (88, 212565), (110, 170052), (111, 168520), (120, 155881), (132, 141710), (148, 126390), (165, 113368), (185, 101112), (220, 85026), (222, 84260), (264, 70855), (296, 63195), (330, 56684), (370, 50556), (383, 48840), (407, 45960), (440, 42513), (444, 42130), (555, 33704), (660, 28342), (740, 25278), (766, 24420), (814, 22980), (888, 21065), (1110, 16852), (1149, 16280), (1221, 15320), (1320, 14171), (1480, 12639), (1532, 12210), (1628, 11490), (1915, 9768), (2035, 9192), (2220, 8426), (2298, 8140), (2442, 7660), (3064, 6105), (3256, 5745), (3830, 4884), (4070, 4596), (4213, 4440)]