8960140

素因数分解:

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

素因数の和:287

約数の個数: 72

約数和(自身を含む): 22522752

約数和(自身を除く): 13562612

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 41, 49, 70, 82, 98, 140, 164, 196, 205, 223, 245, 287, 410, 446, 490, 574, 820, 892, 980, 1115, 1148, 1435, 1561, 2009, 2230, 2870, 3122, 4018, 4460, 5740, 6244, 7805, 8036, 9143, 10045, 10927, 15610, 18286, 20090, 21854, 31220, 36572, 40180, 43708, 45715, 54635, 64001, 91430, 109270, 128002, 182860, 218540, 256004, 320005, 448007, 640010, 896014, 1280020, 1792028, 2240035, 4480070, 8960140]

約数ペア:

[(1, 8960140), (2, 4480070), (4, 2240035), (5, 1792028), (7, 1280020), (10, 896014), (14, 640010), (20, 448007), (28, 320005), (35, 256004), (41, 218540), (49, 182860), (70, 128002), (82, 109270), (98, 91430), (140, 64001), (164, 54635), (196, 45715), (205, 43708), (223, 40180), (245, 36572), (287, 31220), (410, 21854), (446, 20090), (490, 18286), (574, 15610), (820, 10927), (892, 10045), (980, 9143), (1115, 8036), (1148, 7805), (1435, 6244), (1561, 5740), (2009, 4460), (2230, 4018), (2870, 3122)]