20085067960

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{293}}^1\times {\mathrm{90197}}^1$

素因数の和:90520

約数の個数: 64

約数和(自身を含む): 47732781600

約数和(自身を除く): 27647713640

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 293, 380, 586, 760, 1172, 1465, 2344, 2930, 5567, 5860, 11134, 11720, 22268, 27835, 44536, 55670, 90197, 111340, 180394, 222680, 360788, 450985, 721576, 901970, 1713743, 1803940, 3427486, 3607880, 6854972, 8568715, 13709944, 17137430, 26427721, 34274860, 52855442, 68549720, 105710884, 132138605, 211421768, 264277210, 502126699, 528554420, 1004253398, 1057108840, 2008506796, 2510633495, 4017013592, 5021266990, 10042533980, 20085067960]

約数ペア:

[(1, 20085067960), (2, 10042533980), (4, 5021266990), (5, 4017013592), (8, 2510633495), (10, 2008506796), (19, 1057108840), (20, 1004253398), (38, 528554420), (40, 502126699), (76, 264277210), (95, 211421768), (152, 132138605), (190, 105710884), (293, 68549720), (380, 52855442), (586, 34274860), (760, 26427721), (1172, 17137430), (1465, 13709944), (2344, 8568715), (2930, 6854972), (5567, 3607880), (5860, 3427486), (11134, 1803940), (11720, 1713743), (22268, 901970), (27835, 721576), (44536, 450985), (55670, 360788), (90197, 222680), (111340, 180394)]