17920280

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{41}}^1\times {\mathrm{223}}^1$

素因数の和:289

約数の個数: 96

約数和(自身を含む): 48263040

約数和(自身を除く): 30342760

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 41, 49, 56, 70, 82, 98, 140, 164, 196, 205, 223, 245, 280, 287, 328, 392, 410, 446, 490, 574, 820, 892, 980, 1115, 1148, 1435, 1561, 1640, 1784, 1960, 2009, 2230, 2296, 2870, 3122, 4018, 4460, 5740, 6244, 7805, 8036, 8920, 9143, 10045, 10927, 11480, 12488, 15610, 16072, 18286, 20090, 21854, 31220, 36572, 40180, 43708, 45715, 54635, 62440, 64001, 73144, 80360, 87416, 91430, 109270, 128002, 182860, 218540, 256004, 320005, 365720, 437080, 448007, 512008, 640010, 896014, 1280020, 1792028, 2240035, 2560040, 3584056, 4480070, 8960140, 17920280]

約数ペア:

[(1, 17920280), (2, 8960140), (4, 4480070), (5, 3584056), (7, 2560040), (8, 2240035), (10, 1792028), (14, 1280020), (20, 896014), (28, 640010), (35, 512008), (40, 448007), (41, 437080), (49, 365720), (56, 320005), (70, 256004), (82, 218540), (98, 182860), (140, 128002), (164, 109270), (196, 91430), (205, 87416), (223, 80360), (245, 73144), (280, 64001), (287, 62440), (328, 54635), (392, 45715), (410, 43708), (446, 40180), (490, 36572), (574, 31220), (820, 21854), (892, 20090), (980, 18286), (1115, 16072), (1148, 15610), (1435, 12488), (1561, 11480), (1640, 10927), (1784, 10045), (1960, 9143), (2009, 8920), (2230, 8036), (2296, 7805), (2870, 6244), (3122, 5740), (4018, 4460)]