18844580

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{101}}^1\times {\mathrm{491}}^1$

素因数の和:620

約数の個数: 48

約数和(自身を含む): 42154560

約数和(自身を除く): 23309980

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 101, 190, 202, 380, 404, 491, 505, 982, 1010, 1919, 1964, 2020, 2455, 3838, 4910, 7676, 9329, 9595, 9820, 18658, 19190, 37316, 38380, 46645, 49591, 93290, 99182, 186580, 198364, 247955, 495910, 942229, 991820, 1884458, 3768916, 4711145, 9422290, 18844580]

約数ペア:

[(1, 18844580), (2, 9422290), (4, 4711145), (5, 3768916), (10, 1884458), (19, 991820), (20, 942229), (38, 495910), (76, 247955), (95, 198364), (101, 186580), (190, 99182), (202, 93290), (380, 49591), (404, 46645), (491, 38380), (505, 37316), (982, 19190), (1010, 18658), (1919, 9820), (1964, 9595), (2020, 9329), (2455, 7676), (3838, 4910)]