20163932165

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{227}}^1\times {\mathrm{521}}^1$

素因数の和:870

約数の個数: 64

約数和(自身を含む): 27272754432

約数和(自身を除く): 7108822267

約数列:

[1, 5, 13, 43, 61, 65, 215, 227, 305, 521, 559, 793, 1135, 2605, 2623, 2795, 2951, 3965, 6773, 9761, 13115, 13847, 14755, 22403, 31781, 33865, 34099, 48805, 69235, 112015, 118267, 126893, 158905, 170495, 180011, 291239, 413153, 591335, 595421, 634465, 900055, 1366583, 1456195, 1537471, 2065765, 2977105, 5085481, 6832915, 7214287, 7687355, 7740473, 17765579, 25427405, 36071435, 38702365, 66111253, 88827895, 93785731, 310214341, 330556265, 468928655, 1551071705, 4032786433, 20163932165]

約数ペア:

[(1, 20163932165), (5, 4032786433), (13, 1551071705), (43, 468928655), (61, 330556265), (65, 310214341), (215, 93785731), (227, 88827895), (305, 66111253), (521, 38702365), (559, 36071435), (793, 25427405), (1135, 17765579), (2605, 7740473), (2623, 7687355), (2795, 7214287), (2951, 6832915), (3965, 5085481), (6773, 2977105), (9761, 2065765), (13115, 1537471), (13847, 1456195), (14755, 1366583), (22403, 900055), (31781, 634465), (33865, 595421), (34099, 591335), (48805, 413153), (69235, 291239), (112015, 180011), (118267, 170495), (126893, 158905)]