638962064

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{149}}^1\times {\mathrm{389}}^1$

素因数の和:612

約数の個数: 80

約数和(自身を含む): 1371006000

約数和(自身を除く): 732043936

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 53, 104, 106, 149, 208, 212, 298, 389, 424, 596, 689, 778, 848, 1192, 1378, 1556, 1937, 2384, 2756, 3112, 3874, 5057, 5512, 6224, 7748, 7897, 10114, 11024, 15496, 15794, 20228, 20617, 30992, 31588, 40456, 41234, 57961, 63176, 80912, 82468, 102661, 115922, 126352, 164936, 205322, 231844, 268021, 329872, 410644, 463688, 536042, 753493, 821288, 927376, 1072084, 1506986, 1642576, 2144168, 3013972, 3071933, 4288336, 6027944, 6143866, 12055888, 12287732, 24575464, 39935129, 49150928, 79870258, 159740516, 319481032, 638962064]

約数ペア:

[(1, 638962064), (2, 319481032), (4, 159740516), (8, 79870258), (13, 49150928), (16, 39935129), (26, 24575464), (52, 12287732), (53, 12055888), (104, 6143866), (106, 6027944), (149, 4288336), (208, 3071933), (212, 3013972), (298, 2144168), (389, 1642576), (424, 1506986), (596, 1072084), (689, 927376), (778, 821288), (848, 753493), (1192, 536042), (1378, 463688), (1556, 410644), (1937, 329872), (2384, 268021), (2756, 231844), (3112, 205322), (3874, 164936), (5057, 126352), (5512, 115922), (6224, 102661), (7748, 82468), (7897, 80912), (10114, 63176), (11024, 57961), (15496, 41234), (15794, 40456), (20228, 31588), (20617, 30992)]