20881569248

素因数分解:

$2^5\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{725861}}^1$

素因数の和:725931

約数の個数: 48

約数和(自身を含む): 43900133760

約数和(自身を除く): 23018564512

約数列:

[1, 2, 4, 8, 16, 29, 31, 32, 58, 62, 116, 124, 232, 248, 464, 496, 899, 928, 992, 1798, 3596, 7192, 14384, 28768, 725861, 1451722, 2903444, 5806888, 11613776, 21049969, 22501691, 23227552, 42099938, 45003382, 84199876, 90006764, 168399752, 180013528, 336799504, 360027056, 652549039, 673599008, 720054112, 1305098078, 2610196156, 5220392312, 10440784624, 20881569248]

約数ペア:

[(1, 20881569248), (2, 10440784624), (4, 5220392312), (8, 2610196156), (16, 1305098078), (29, 720054112), (31, 673599008), (32, 652549039), (58, 360027056), (62, 336799504), (116, 180013528), (124, 168399752), (232, 90006764), (248, 84199876), (464, 45003382), (496, 42099938), (899, 23227552), (928, 22501691), (992, 21049969), (1798, 11613776), (3596, 5806888), (7192, 2903444), (14384, 1451722), (28768, 725861)]