78449917

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{19}}^1\times {\mathrm{157}}^1$

素因数の和:230

約数の個数: 48

約数和(自身を含む): 108653440

約数和(自身を除く): 30203523

約数列:

[1, 7, 13, 17, 19, 91, 119, 133, 157, 221, 247, 289, 323, 1099, 1547, 1729, 2023, 2041, 2261, 2669, 2983, 3757, 4199, 5491, 14287, 18683, 20881, 26299, 29393, 34697, 38437, 38779, 45373, 50711, 71383, 242879, 271453, 317611, 354977, 499681, 589849, 659243, 862087, 4128943, 4614701, 6034609, 11207131, 78449917]

約数ペア:

[(1, 78449917), (7, 11207131), (13, 6034609), (17, 4614701), (19, 4128943), (91, 862087), (119, 659243), (133, 589849), (157, 499681), (221, 354977), (247, 317611), (289, 271453), (323, 242879), (1099, 71383), (1547, 50711), (1729, 45373), (2023, 38779), (2041, 38437), (2261, 34697), (2669, 29393), (2983, 26299), (3757, 20881), (4199, 18683), (5491, 14287)]