18897720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{167}}^1$

素因数の和:245

約数の個数: 128

約数和(自身を含む): 60963840

約数和(自身を除く): 42066120

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 23, 24, 30, 40, 41, 46, 60, 69, 82, 92, 115, 120, 123, 138, 164, 167, 184, 205, 230, 246, 276, 328, 334, 345, 410, 460, 492, 501, 552, 615, 668, 690, 820, 835, 920, 943, 984, 1002, 1230, 1336, 1380, 1640, 1670, 1886, 2004, 2460, 2505, 2760, 2829, 3340, 3772, 3841, 4008, 4715, 4920, 5010, 5658, 6680, 6847, 7544, 7682, 9430, 10020, 11316, 11523, 13694, 14145, 15364, 18860, 19205, 20040, 20541, 22632, 23046, 27388, 28290, 30728, 34235, 37720, 38410, 41082, 46092, 54776, 56580, 57615, 68470, 76820, 82164, 92184, 102705, 113160, 115230, 136940, 153640, 157481, 164328, 205410, 230460, 273880, 314962, 410820, 460920, 472443, 629924, 787405, 821640, 944886, 1259848, 1574810, 1889772, 2362215, 3149620, 3779544, 4724430, 6299240, 9448860, 18897720]

約数ペア:

[(1, 18897720), (2, 9448860), (3, 6299240), (4, 4724430), (5, 3779544), (6, 3149620), (8, 2362215), (10, 1889772), (12, 1574810), (15, 1259848), (20, 944886), (23, 821640), (24, 787405), (30, 629924), (40, 472443), (41, 460920), (46, 410820), (60, 314962), (69, 273880), (82, 230460), (92, 205410), (115, 164328), (120, 157481), (123, 153640), (138, 136940), (164, 115230), (167, 113160), (184, 102705), (205, 92184), (230, 82164), (246, 76820), (276, 68470), (328, 57615), (334, 56580), (345, 54776), (410, 46092), (460, 41082), (492, 38410), (501, 37720), (552, 34235), (615, 30728), (668, 28290), (690, 27388), (820, 23046), (835, 22632), (920, 20541), (943, 20040), (984, 19205), (1002, 18860), (1230, 15364), (1336, 14145), (1380, 13694), (1640, 11523), (1670, 11316), (1886, 10020), (2004, 9430), (2460, 7682), (2505, 7544), (2760, 6847), (2829, 6680), (3340, 5658), (3772, 5010), (3841, 4920), (4008, 4715)]