7539508180

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{991}}^1\times {\mathrm{20021}}^1$

素因数の和:21040

約数の個数: 48

約数和(自身を含む): 16683932160

約数和(自身を除く): 9144423980

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 991, 1982, 3964, 4955, 9910, 18829, 19820, 20021, 37658, 40042, 75316, 80084, 94145, 100105, 188290, 200210, 376580, 380399, 400420, 760798, 1521596, 1901995, 3803990, 7607980, 19840811, 39681622, 79363244, 99204055, 198408110, 376975409, 396816220, 753950818, 1507901636, 1884877045, 3769754090, 7539508180]

約数ペア:

[(1, 7539508180), (2, 3769754090), (4, 1884877045), (5, 1507901636), (10, 753950818), (19, 396816220), (20, 376975409), (38, 198408110), (76, 99204055), (95, 79363244), (190, 39681622), (380, 19840811), (991, 7607980), (1982, 3803990), (3964, 1901995), (4955, 1521596), (9910, 760798), (18829, 400420), (19820, 380399), (20021, 376580), (37658, 200210), (40042, 188290), (75316, 100105), (80084, 94145)]