201389968

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{131}}^1\times {\mathrm{389}}^1$

素因数の和:560

約数の個数: 80

約数和(自身を含む): 446846400

約数和(自身を除く): 245456432

約数列:

[1, 2, 4, 8, 13, 16, 19, 26, 38, 52, 76, 104, 131, 152, 208, 247, 262, 304, 389, 494, 524, 778, 988, 1048, 1556, 1703, 1976, 2096, 2489, 3112, 3406, 3952, 4978, 5057, 6224, 6812, 7391, 9956, 10114, 13624, 14782, 19912, 20228, 27248, 29564, 32357, 39824, 40456, 50959, 59128, 64714, 80912, 96083, 101918, 118256, 129428, 192166, 203836, 258856, 384332, 407672, 517712, 662467, 768664, 815344, 968221, 1324934, 1537328, 1936442, 2649868, 3872884, 5299736, 7745768, 10599472, 12586873, 15491536, 25173746, 50347492, 100694984, 201389968]

約数ペア:

[(1, 201389968), (2, 100694984), (4, 50347492), (8, 25173746), (13, 15491536), (16, 12586873), (19, 10599472), (26, 7745768), (38, 5299736), (52, 3872884), (76, 2649868), (104, 1936442), (131, 1537328), (152, 1324934), (208, 968221), (247, 815344), (262, 768664), (304, 662467), (389, 517712), (494, 407672), (524, 384332), (778, 258856), (988, 203836), (1048, 192166), (1556, 129428), (1703, 118256), (1976, 101918), (2096, 96083), (2489, 80912), (3112, 64714), (3406, 59128), (3952, 50959), (4978, 40456), (5057, 39824), (6224, 32357), (6812, 29564), (7391, 27248), (9956, 20228), (10114, 19912), (13624, 14782)]