51250940

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{59}}^1\times {\mathrm{257}}^1$

素因数の和:351

約数の個数: 72

約数和(自身を含む): 118979280

約数和(自身を除く): 67728340

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 59, 65, 118, 130, 169, 236, 257, 260, 295, 338, 514, 590, 676, 767, 845, 1028, 1180, 1285, 1534, 1690, 2570, 3068, 3341, 3380, 3835, 5140, 6682, 7670, 9971, 13364, 15163, 15340, 16705, 19942, 30326, 33410, 39884, 43433, 49855, 60652, 66820, 75815, 86866, 99710, 151630, 173732, 197119, 199420, 217165, 303260, 394238, 434330, 788476, 868660, 985595, 1971190, 2562547, 3942380, 5125094, 10250188, 12812735, 25625470, 51250940]

約数ペア:

[(1, 51250940), (2, 25625470), (4, 12812735), (5, 10250188), (10, 5125094), (13, 3942380), (20, 2562547), (26, 1971190), (52, 985595), (59, 868660), (65, 788476), (118, 434330), (130, 394238), (169, 303260), (236, 217165), (257, 199420), (260, 197119), (295, 173732), (338, 151630), (514, 99710), (590, 86866), (676, 75815), (767, 66820), (845, 60652), (1028, 49855), (1180, 43433), (1285, 39884), (1534, 33410), (1690, 30326), (2570, 19942), (3068, 16705), (3341, 15340), (3380, 15163), (3835, 13364), (5140, 9971), (6682, 7670)]