207866840

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{479}}^1\times {\mathrm{571}}^1$

素因数の和:1080

約数の個数: 64

約数和(自身を含む): 494208000

約数和(自身を除く): 286341160

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 380, 479, 571, 760, 958, 1142, 1916, 2284, 2395, 2855, 3832, 4568, 4790, 5710, 9101, 9580, 10849, 11420, 18202, 19160, 21698, 22840, 36404, 43396, 45505, 54245, 72808, 86792, 91010, 108490, 182020, 216980, 273509, 364040, 433960, 547018, 1094036, 1367545, 2188072, 2735090, 5196671, 5470180, 10393342, 10940360, 20786684, 25983355, 41573368, 51966710, 103933420, 207866840]

約数ペア:

[(1, 207866840), (2, 103933420), (4, 51966710), (5, 41573368), (8, 25983355), (10, 20786684), (19, 10940360), (20, 10393342), (38, 5470180), (40, 5196671), (76, 2735090), (95, 2188072), (152, 1367545), (190, 1094036), (380, 547018), (479, 433960), (571, 364040), (760, 273509), (958, 216980), (1142, 182020), (1916, 108490), (2284, 91010), (2395, 86792), (2855, 72808), (3832, 54245), (4568, 45505), (4790, 43396), (5710, 36404), (9101, 22840), (9580, 21698), (10849, 19160), (11420, 18202)]