18966720

素因数分解:

$2^6\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{859}}^1$

素因数の和:902

約数の個数: 112

約数和(自身を含む): 62910720

約数和(自身を除く): 43944000

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 23, 24, 30, 32, 40, 46, 48, 60, 64, 69, 80, 92, 96, 115, 120, 138, 160, 184, 192, 230, 240, 276, 320, 345, 368, 460, 480, 552, 690, 736, 859, 920, 960, 1104, 1380, 1472, 1718, 1840, 2208, 2577, 2760, 3436, 3680, 4295, 4416, 5154, 5520, 6872, 7360, 8590, 10308, 11040, 12885, 13744, 17180, 19757, 20616, 22080, 25770, 27488, 34360, 39514, 41232, 51540, 54976, 59271, 68720, 79028, 82464, 98785, 103080, 118542, 137440, 158056, 164928, 197570, 206160, 237084, 274880, 296355, 316112, 395140, 412320, 474168, 592710, 632224, 790280, 824640, 948336, 1185420, 1264448, 1580560, 1896672, 2370840, 3161120, 3793344, 4741680, 6322240, 9483360, 18966720]

約数ペア:

[(1, 18966720), (2, 9483360), (3, 6322240), (4, 4741680), (5, 3793344), (6, 3161120), (8, 2370840), (10, 1896672), (12, 1580560), (15, 1264448), (16, 1185420), (20, 948336), (23, 824640), (24, 790280), (30, 632224), (32, 592710), (40, 474168), (46, 412320), (48, 395140), (60, 316112), (64, 296355), (69, 274880), (80, 237084), (92, 206160), (96, 197570), (115, 164928), (120, 158056), (138, 137440), (160, 118542), (184, 103080), (192, 98785), (230, 82464), (240, 79028), (276, 68720), (320, 59271), (345, 54976), (368, 51540), (460, 41232), (480, 39514), (552, 34360), (690, 27488), (736, 25770), (859, 22080), (920, 20616), (960, 19757), (1104, 17180), (1380, 13744), (1472, 12885), (1718, 11040), (1840, 10308), (2208, 8590), (2577, 7360), (2760, 6872), (3436, 5520), (3680, 5154), (4295, 4416)]