19832560

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{727}}^1$

素因数の和:782

約数の個数: 80

約数和(自身を含む): 51996672

約数和(自身を除く): 32164112

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 31, 40, 44, 55, 62, 80, 88, 110, 124, 155, 176, 220, 248, 310, 341, 440, 496, 620, 682, 727, 880, 1240, 1364, 1454, 1705, 2480, 2728, 2908, 3410, 3635, 5456, 5816, 6820, 7270, 7997, 11632, 13640, 14540, 15994, 22537, 27280, 29080, 31988, 39985, 45074, 58160, 63976, 79970, 90148, 112685, 127952, 159940, 180296, 225370, 247907, 319880, 360592, 450740, 495814, 639760, 901480, 991628, 1239535, 1802960, 1983256, 2479070, 3966512, 4958140, 9916280, 19832560]

約数ペア:

[(1, 19832560), (2, 9916280), (4, 4958140), (5, 3966512), (8, 2479070), (10, 1983256), (11, 1802960), (16, 1239535), (20, 991628), (22, 901480), (31, 639760), (40, 495814), (44, 450740), (55, 360592), (62, 319880), (80, 247907), (88, 225370), (110, 180296), (124, 159940), (155, 127952), (176, 112685), (220, 90148), (248, 79970), (310, 63976), (341, 58160), (440, 45074), (496, 39985), (620, 31988), (682, 29080), (727, 27280), (880, 22537), (1240, 15994), (1364, 14540), (1454, 13640), (1705, 11632), (2480, 7997), (2728, 7270), (2908, 6820), (3410, 5816), (3635, 5456)]