16821289420

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{193}}^1\times {\mathrm{3319}}^1$

素因数の和:3635

約数の個数: 96

約数和(自身を含む): 38629342080

約数和(自身を除く): 21808052660

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 101, 130, 193, 202, 260, 386, 404, 505, 772, 965, 1010, 1313, 1930, 2020, 2509, 2626, 3319, 3860, 5018, 5252, 6565, 6638, 10036, 12545, 13130, 13276, 16595, 19493, 25090, 26260, 33190, 38986, 43147, 50180, 66380, 77972, 86294, 97465, 172588, 194930, 215735, 253409, 335219, 389860, 431470, 506818, 640567, 670438, 862940, 1013636, 1267045, 1281134, 1340876, 1676095, 2534090, 2562268, 3202835, 3352190, 4357847, 5068180, 6405670, 6704380, 8327371, 8715694, 12811340, 16654742, 17431388, 21789235, 33309484, 41636855, 43578470, 64697267, 83273710, 87156940, 129394534, 166547420, 258789068, 323486335, 646972670, 841064471, 1293945340, 1682128942, 3364257884, 4205322355, 8410644710, 16821289420]

約数ペア:

[(1, 16821289420), (2, 8410644710), (4, 4205322355), (5, 3364257884), (10, 1682128942), (13, 1293945340), (20, 841064471), (26, 646972670), (52, 323486335), (65, 258789068), (101, 166547420), (130, 129394534), (193, 87156940), (202, 83273710), (260, 64697267), (386, 43578470), (404, 41636855), (505, 33309484), (772, 21789235), (965, 17431388), (1010, 16654742), (1313, 12811340), (1930, 8715694), (2020, 8327371), (2509, 6704380), (2626, 6405670), (3319, 5068180), (3860, 4357847), (5018, 3352190), (5252, 3202835), (6565, 2562268), (6638, 2534090), (10036, 1676095), (12545, 1340876), (13130, 1281134), (13276, 1267045), (16595, 1013636), (19493, 862940), (25090, 670438), (26260, 640567), (33190, 506818), (38986, 431470), (43147, 389860), (50180, 335219), (66380, 253409), (77972, 215735), (86294, 194930), (97465, 172588)]