28998515

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{163}}^1$

素因数の和:228

約数の個数: 64

約数和(自身を含む): 47609856

約数和(自身を除く): 18611341

約数列:

[1, 5, 7, 13, 17, 23, 35, 65, 85, 91, 115, 119, 161, 163, 221, 299, 391, 455, 595, 805, 815, 1105, 1141, 1495, 1547, 1955, 2093, 2119, 2737, 2771, 3749, 5083, 5705, 7735, 10465, 10595, 13685, 13855, 14833, 18745, 19397, 25415, 26243, 35581, 36023, 48737, 63733, 74165, 96985, 131215, 177905, 180115, 243685, 252161, 318665, 341159, 446131, 828529, 1260805, 1705795, 2230655, 4142645, 5799703, 28998515]

約数ペア:

[(1, 28998515), (5, 5799703), (7, 4142645), (13, 2230655), (17, 1705795), (23, 1260805), (35, 828529), (65, 446131), (85, 341159), (91, 318665), (115, 252161), (119, 243685), (161, 180115), (163, 177905), (221, 131215), (299, 96985), (391, 74165), (455, 63733), (595, 48737), (805, 36023), (815, 35581), (1105, 26243), (1141, 25415), (1495, 19397), (1547, 18745), (1955, 14833), (2093, 13855), (2119, 13685), (2737, 10595), (2771, 10465), (3749, 7735), (5083, 5705)]