19355540

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{59}}^1\times {\mathrm{349}}^1$

素因数の和:464

約数の個数: 48

約数和(自身を含む): 42336000

約数和(自身を除く): 22980460

約数列:

[1, 2, 4, 5, 10, 20, 47, 59, 94, 118, 188, 235, 236, 295, 349, 470, 590, 698, 940, 1180, 1396, 1745, 2773, 3490, 5546, 6980, 11092, 13865, 16403, 20591, 27730, 32806, 41182, 55460, 65612, 82015, 82364, 102955, 164030, 205910, 328060, 411820, 967777, 1935554, 3871108, 4838885, 9677770, 19355540]

約数ペア:

[(1, 19355540), (2, 9677770), (4, 4838885), (5, 3871108), (10, 1935554), (20, 967777), (47, 411820), (59, 328060), (94, 205910), (118, 164030), (188, 102955), (235, 82364), (236, 82015), (295, 65612), (349, 55460), (470, 41182), (590, 32806), (698, 27730), (940, 20591), (1180, 16403), (1396, 13865), (1745, 11092), (2773, 6980), (3490, 5546)]