78403038520

素因数分解:

$2^3\times 5^1\times {\mathrm{127}}^1\times {\mathrm{977}}^1\times {\mathrm{15797}}^1$

素因数の和:16912

約数の個数: 64

約数和(自身を含む): 177989114880

約数和(自身を除く): 99586076360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 127, 254, 508, 635, 977, 1016, 1270, 1954, 2540, 3908, 4885, 5080, 7816, 9770, 15797, 19540, 31594, 39080, 63188, 78985, 124079, 126376, 157970, 248158, 315940, 496316, 620395, 631880, 992632, 1240790, 2006219, 2481580, 4012438, 4963160, 8024876, 10031095, 15433669, 16049752, 20062190, 30867338, 40124380, 61734676, 77168345, 80248760, 123469352, 154336690, 308673380, 617346760, 1960075963, 3920151926, 7840303852, 9800379815, 15680607704, 19600759630, 39201519260, 78403038520]

約数ペア:

[(1, 78403038520), (2, 39201519260), (4, 19600759630), (5, 15680607704), (8, 9800379815), (10, 7840303852), (20, 3920151926), (40, 1960075963), (127, 617346760), (254, 308673380), (508, 154336690), (635, 123469352), (977, 80248760), (1016, 77168345), (1270, 61734676), (1954, 40124380), (2540, 30867338), (3908, 20062190), (4885, 16049752), (5080, 15433669), (7816, 10031095), (9770, 8024876), (15797, 4963160), (19540, 4012438), (31594, 2481580), (39080, 2006219), (63188, 1240790), (78985, 992632), (124079, 631880), (126376, 620395), (157970, 496316), (248158, 315940)]