20804865135

素因数分解:

$3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{47}}^1\times {\mathrm{353}}^1\times {\mathrm{2039}}^1$

素因数の和:2488

約数の個数: 64

約数和(自身を含む): 34940989440

約数和(自身を除く): 14136124305

約数列:

[1, 3, 5, 15, 41, 47, 123, 141, 205, 235, 353, 615, 705, 1059, 1765, 1927, 2039, 5295, 5781, 6117, 9635, 10195, 14473, 16591, 28905, 30585, 43419, 49773, 72365, 82955, 83599, 95833, 217095, 248865, 250797, 287499, 417995, 479165, 680231, 719767, 1253985, 1437495, 2040693, 2159301, 3401155, 3598835, 3929153, 10203465, 10796505, 11787459, 19645765, 29510447, 33829049, 58937295, 88531341, 101487147, 147552235, 169145245, 442656705, 507435735, 1386991009, 4160973027, 6934955045, 20804865135]

約数ペア:

[(1, 20804865135), (3, 6934955045), (5, 4160973027), (15, 1386991009), (41, 507435735), (47, 442656705), (123, 169145245), (141, 147552235), (205, 101487147), (235, 88531341), (353, 58937295), (615, 33829049), (705, 29510447), (1059, 19645765), (1765, 11787459), (1927, 10796505), (2039, 10203465), (5295, 3929153), (5781, 3598835), (6117, 3401155), (9635, 2159301), (10195, 2040693), (14473, 1437495), (16591, 1253985), (28905, 719767), (30585, 680231), (43419, 479165), (49773, 417995), (72365, 287499), (82955, 250797), (83599, 248865), (95833, 217095)]