20166745180

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{3739}}^1\times {\mathrm{4421}}^1$

素因数の和:8230

約数の個数: 48

約数和(自身を含む): 43065681120

約数和(自身を除く): 22898935940

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 244, 305, 610, 1220, 3739, 4421, 7478, 8842, 14956, 17684, 18695, 22105, 37390, 44210, 74780, 88420, 228079, 269681, 456158, 539362, 912316, 1078724, 1140395, 1348405, 2280790, 2696810, 4561580, 5393620, 16530119, 33060238, 66120476, 82650595, 165301190, 330602380, 1008337259, 2016674518, 4033349036, 5041686295, 10083372590, 20166745180]

約数ペア:

[(1, 20166745180), (2, 10083372590), (4, 5041686295), (5, 4033349036), (10, 2016674518), (20, 1008337259), (61, 330602380), (122, 165301190), (244, 82650595), (305, 66120476), (610, 33060238), (1220, 16530119), (3739, 5393620), (4421, 4561580), (7478, 2696810), (8842, 2280790), (14956, 1348405), (17684, 1140395), (18695, 1078724), (22105, 912316), (37390, 539362), (44210, 456158), (74780, 269681), (88420, 228079)]