289505090

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{1997}}^1$

素因数の和:2139

約数の個数: 64

約数和(自身を含む): 632966400

約数和(自身を除く): 343461310

約数列:

[1, 2, 5, 7, 10, 14, 19, 35, 38, 70, 95, 109, 133, 190, 218, 266, 545, 665, 763, 1090, 1330, 1526, 1997, 2071, 3815, 3994, 4142, 7630, 9985, 10355, 13979, 14497, 19970, 20710, 27958, 28994, 37943, 69895, 72485, 75886, 139790, 144970, 189715, 217673, 265601, 379430, 435346, 531202, 1088365, 1328005, 1523711, 2176730, 2656010, 3047422, 4135787, 7618555, 8271574, 15237110, 20678935, 28950509, 41357870, 57901018, 144752545, 289505090]

約数ペア:

[(1, 289505090), (2, 144752545), (5, 57901018), (7, 41357870), (10, 28950509), (14, 20678935), (19, 15237110), (35, 8271574), (38, 7618555), (70, 4135787), (95, 3047422), (109, 2656010), (133, 2176730), (190, 1523711), (218, 1328005), (266, 1088365), (545, 531202), (665, 435346), (763, 379430), (1090, 265601), (1330, 217673), (1526, 189715), (1997, 144970), (2071, 139790), (3815, 75886), (3994, 72485), (4142, 69895), (7630, 37943), (9985, 28994), (10355, 27958), (13979, 20710), (14497, 19970)]