18351240

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{109}}^1$

素因数の和:207

約数の個数: 128

約数和(自身を含む): 58924800

約数和(自身を除く): 40573560

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 23, 24, 30, 40, 46, 60, 61, 69, 92, 109, 115, 120, 122, 138, 183, 184, 218, 230, 244, 276, 305, 327, 345, 366, 436, 460, 488, 545, 552, 610, 654, 690, 732, 872, 915, 920, 1090, 1220, 1308, 1380, 1403, 1464, 1635, 1830, 2180, 2440, 2507, 2616, 2760, 2806, 3270, 3660, 4209, 4360, 5014, 5612, 6540, 6649, 7015, 7320, 7521, 8418, 10028, 11224, 12535, 13080, 13298, 14030, 15042, 16836, 19947, 20056, 21045, 25070, 26596, 28060, 30084, 33245, 33672, 37605, 39894, 42090, 50140, 53192, 56120, 60168, 66490, 75210, 79788, 84180, 99735, 100280, 132980, 150420, 152927, 159576, 168360, 199470, 265960, 300840, 305854, 398940, 458781, 611708, 764635, 797880, 917562, 1223416, 1529270, 1835124, 2293905, 3058540, 3670248, 4587810, 6117080, 9175620, 18351240]

約数ペア:

[(1, 18351240), (2, 9175620), (3, 6117080), (4, 4587810), (5, 3670248), (6, 3058540), (8, 2293905), (10, 1835124), (12, 1529270), (15, 1223416), (20, 917562), (23, 797880), (24, 764635), (30, 611708), (40, 458781), (46, 398940), (60, 305854), (61, 300840), (69, 265960), (92, 199470), (109, 168360), (115, 159576), (120, 152927), (122, 150420), (138, 132980), (183, 100280), (184, 99735), (218, 84180), (230, 79788), (244, 75210), (276, 66490), (305, 60168), (327, 56120), (345, 53192), (366, 50140), (436, 42090), (460, 39894), (488, 37605), (545, 33672), (552, 33245), (610, 30084), (654, 28060), (690, 26596), (732, 25070), (872, 21045), (915, 20056), (920, 19947), (1090, 16836), (1220, 15042), (1308, 14030), (1380, 13298), (1403, 13080), (1464, 12535), (1635, 11224), (1830, 10028), (2180, 8418), (2440, 7521), (2507, 7320), (2616, 7015), (2760, 6649), (2806, 6540), (3270, 5612), (3660, 5014), (4209, 4360)]