20079528016

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{467}}^1\times {\mathrm{2111}}^1$

素因数の和:2672

約数の個数: 80

約数和(自身を含む): 41671618560

約数和(自身を除く): 21592090544

約数列:

[1, 2, 4, 8, 16, 19, 38, 67, 76, 134, 152, 268, 304, 467, 536, 934, 1072, 1273, 1868, 2111, 2546, 3736, 4222, 5092, 7472, 8444, 8873, 10184, 16888, 17746, 20368, 31289, 33776, 35492, 40109, 62578, 70984, 80218, 125156, 141437, 141968, 160436, 250312, 282874, 320872, 500624, 565748, 594491, 641744, 985837, 1131496, 1188982, 1971674, 2262992, 2377964, 2687303, 3943348, 4755928, 5374606, 7886696, 9511856, 10749212, 15773392, 18730903, 21498424, 37461806, 42996848, 66051079, 74923612, 132102158, 149847224, 264204316, 299694448, 528408632, 1056817264, 1254970501, 2509941002, 5019882004, 10039764008, 20079528016]

約数ペア:

[(1, 20079528016), (2, 10039764008), (4, 5019882004), (8, 2509941002), (16, 1254970501), (19, 1056817264), (38, 528408632), (67, 299694448), (76, 264204316), (134, 149847224), (152, 132102158), (268, 74923612), (304, 66051079), (467, 42996848), (536, 37461806), (934, 21498424), (1072, 18730903), (1273, 15773392), (1868, 10749212), (2111, 9511856), (2546, 7886696), (3736, 5374606), (4222, 4755928), (5092, 3943348), (7472, 2687303), (8444, 2377964), (8873, 2262992), (10184, 1971674), (16888, 1188982), (17746, 1131496), (20368, 985837), (31289, 641744), (33776, 594491), (35492, 565748), (40109, 500624), (62578, 320872), (70984, 282874), (80218, 250312), (125156, 160436), (141437, 141968)]