19912314650

素因数分解:

$2^1\times 5^2\times {\mathrm{53}}^1\times {\mathrm{1361}}^1\times {\mathrm{5521}}^1$

素因数の和:6947

約数の個数: 48

約数和(自身を含む): 37770281208

約数和(自身を除く): 17857966558

約数列:

[1, 2, 5, 10, 25, 50, 53, 106, 265, 530, 1325, 1361, 2650, 2722, 5521, 6805, 11042, 13610, 27605, 34025, 55210, 68050, 72133, 138025, 144266, 276050, 292613, 360665, 585226, 721330, 1463065, 1803325, 2926130, 3606650, 7315325, 7514081, 14630650, 15028162, 37570405, 75140810, 187852025, 375704050, 398246293, 796492586, 1991231465, 3982462930, 9956157325, 19912314650]

約数ペア:

[(1, 19912314650), (2, 9956157325), (5, 3982462930), (10, 1991231465), (25, 796492586), (50, 398246293), (53, 375704050), (106, 187852025), (265, 75140810), (530, 37570405), (1325, 15028162), (1361, 14630650), (2650, 7514081), (2722, 7315325), (5521, 3606650), (6805, 2926130), (11042, 1803325), (13610, 1463065), (27605, 721330), (34025, 585226), (55210, 360665), (68050, 292613), (72133, 276050), (138025, 144266)]