20198523075

素因数分解:

$3^1\times 5^2\times {\mathrm{137}}^1\times {\mathrm{257}}^1\times {\mathrm{7649}}^1$

素因数の和:8056

約数の個数: 48

約数和(自身を含む): 33773954400

約数和(自身を除く): 13575431325

約数列:

[1, 3, 5, 15, 25, 75, 137, 257, 411, 685, 771, 1285, 2055, 3425, 3855, 6425, 7649, 10275, 19275, 22947, 35209, 38245, 105627, 114735, 176045, 191225, 528135, 573675, 880225, 1047913, 1965793, 2640675, 3143739, 5239565, 5897379, 9828965, 15718695, 26197825, 29486895, 49144825, 78593475, 147434475, 269313641, 807940923, 1346568205, 4039704615, 6732841025, 20198523075]

約数ペア:

[(1, 20198523075), (3, 6732841025), (5, 4039704615), (15, 1346568205), (25, 807940923), (75, 269313641), (137, 147434475), (257, 78593475), (411, 49144825), (685, 29486895), (771, 26197825), (1285, 15718695), (2055, 9828965), (3425, 5897379), (3855, 5239565), (6425, 3143739), (7649, 2640675), (10275, 1965793), (19275, 1047913), (22947, 880225), (35209, 573675), (38245, 528135), (105627, 191225), (114735, 176045)]