28178804563

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{16249}}^1$

素因数の和:16364

約数の個数: 64

約数和(自身を含む): 39312000000

約数和(自身を除く): 11133195437

約数列:

[1, 7, 13, 17, 19, 59, 91, 119, 133, 221, 247, 323, 413, 767, 1003, 1121, 1547, 1729, 2261, 4199, 5369, 7021, 7847, 13039, 14573, 16249, 19057, 29393, 91273, 102011, 113743, 133399, 211237, 247741, 276233, 308731, 958691, 1478659, 1734187, 1933631, 2161117, 3591029, 4013503, 5248427, 6710837, 12462983, 16297747, 18215129, 25137203, 28094521, 36738989, 68229551, 87240881, 114084229, 127505903, 211870711, 236796677, 309657193, 477606857, 1483094977, 1657576739, 2167600351, 4025543509, 28178804563]

約数ペア:

[(1, 28178804563), (7, 4025543509), (13, 2167600351), (17, 1657576739), (19, 1483094977), (59, 477606857), (91, 309657193), (119, 236796677), (133, 211870711), (221, 127505903), (247, 114084229), (323, 87240881), (413, 68229551), (767, 36738989), (1003, 28094521), (1121, 25137203), (1547, 18215129), (1729, 16297747), (2261, 12462983), (4199, 6710837), (5369, 5248427), (7021, 4013503), (7847, 3591029), (13039, 2161117), (14573, 1933631), (16249, 1734187), (19057, 1478659), (29393, 958691), (91273, 308731), (102011, 276233), (113743, 247741), (133399, 211237)]