51871995

素因数分解:

$3^6\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{107}}^1$

素因数の和:156

約数の個数: 112

約数和(自身を含む): 113322240

約数和(自身を除く): 61450245

約数列:

[1, 3, 5, 7, 9, 15, 19, 21, 27, 35, 45, 57, 63, 81, 95, 105, 107, 133, 135, 171, 189, 243, 285, 315, 321, 399, 405, 513, 535, 567, 665, 729, 749, 855, 945, 963, 1197, 1215, 1539, 1605, 1701, 1995, 2033, 2247, 2565, 2835, 2889, 3591, 3645, 3745, 4617, 4815, 5103, 5985, 6099, 6741, 7695, 8505, 8667, 10165, 10773, 11235, 13851, 14231, 14445, 17955, 18297, 20223, 23085, 25515, 26001, 30495, 32319, 33705, 42693, 43335, 53865, 54891, 60669, 69255, 71155, 78003, 91485, 96957, 101115, 128079, 130005, 161595, 164673, 182007, 213465, 274455, 303345, 384237, 390015, 484785, 494019, 546021, 640395, 823365, 910035, 1152711, 1482057, 1921185, 2470095, 2730105, 3458133, 5763555, 7410285, 10374399, 17290665, 51871995]

約数ペア:

[(1, 51871995), (3, 17290665), (5, 10374399), (7, 7410285), (9, 5763555), (15, 3458133), (19, 2730105), (21, 2470095), (27, 1921185), (35, 1482057), (45, 1152711), (57, 910035), (63, 823365), (81, 640395), (95, 546021), (105, 494019), (107, 484785), (133, 390015), (135, 384237), (171, 303345), (189, 274455), (243, 213465), (285, 182007), (315, 164673), (321, 161595), (399, 130005), (405, 128079), (513, 101115), (535, 96957), (567, 91485), (665, 78003), (729, 71155), (749, 69255), (855, 60669), (945, 54891), (963, 53865), (1197, 43335), (1215, 42693), (1539, 33705), (1605, 32319), (1701, 30495), (1995, 26001), (2033, 25515), (2247, 23085), (2565, 20223), (2835, 18297), (2889, 17955), (3591, 14445), (3645, 14231), (3745, 13851), (4617, 11235), (4815, 10773), (5103, 10165), (5985, 8667), (6099, 8505), (6741, 7695)]