208831688

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{127}}^1\times {\mathrm{163}}^1$

素因数の和:406

約数の個数: 64

約数和(自身を含む): 432015360

約数和(自身を除く): 223183672

約数列:

[1, 2, 4, 8, 13, 26, 52, 97, 104, 127, 163, 194, 254, 326, 388, 508, 652, 776, 1016, 1261, 1304, 1651, 2119, 2522, 3302, 4238, 5044, 6604, 8476, 10088, 12319, 13208, 15811, 16952, 20701, 24638, 31622, 41402, 49276, 63244, 82804, 98552, 126488, 160147, 165608, 205543, 269113, 320294, 411086, 538226, 640588, 822172, 1076452, 1281176, 1644344, 2007997, 2152904, 4015994, 8031988, 16063976, 26103961, 52207922, 104415844, 208831688]

約数ペア:

[(1, 208831688), (2, 104415844), (4, 52207922), (8, 26103961), (13, 16063976), (26, 8031988), (52, 4015994), (97, 2152904), (104, 2007997), (127, 1644344), (163, 1281176), (194, 1076452), (254, 822172), (326, 640588), (388, 538226), (508, 411086), (652, 320294), (776, 269113), (1016, 205543), (1261, 165608), (1304, 160147), (1651, 126488), (2119, 98552), (2522, 82804), (3302, 63244), (4238, 49276), (5044, 41402), (6604, 31622), (8476, 24638), (10088, 20701), (12319, 16952), (13208, 15811)]