25155020

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{109}}^1\times {\mathrm{1049}}^1$

素因数の和:1178

約数の個数: 48

約数和(自身を含む): 58212000

約数和(自身を除く): 33056980

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 109, 110, 218, 220, 436, 545, 1049, 1090, 1199, 2098, 2180, 2398, 4196, 4796, 5245, 5995, 10490, 11539, 11990, 20980, 23078, 23980, 46156, 57695, 114341, 115390, 228682, 230780, 457364, 571705, 1143410, 1257751, 2286820, 2515502, 5031004, 6288755, 12577510, 25155020]

約数ペア:

[(1, 25155020), (2, 12577510), (4, 6288755), (5, 5031004), (10, 2515502), (11, 2286820), (20, 1257751), (22, 1143410), (44, 571705), (55, 457364), (109, 230780), (110, 228682), (218, 115390), (220, 114341), (436, 57695), (545, 46156), (1049, 23980), (1090, 23078), (1199, 20980), (2098, 11990), (2180, 11539), (2398, 10490), (4196, 5995), (4796, 5245)]