12880575

素因数分解:

$3^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{131}}^1$

素因数の和:189

約数の個数: 72

約数和(自身を含む): 25534080

約数和(自身を除く): 12653505

約数列:

[1, 3, 5, 9, 15, 19, 23, 25, 45, 57, 69, 75, 95, 115, 131, 171, 207, 225, 285, 345, 393, 437, 475, 575, 655, 855, 1035, 1179, 1311, 1425, 1725, 1965, 2185, 2489, 3013, 3275, 3933, 4275, 5175, 5895, 6555, 7467, 9039, 9825, 10925, 12445, 15065, 19665, 22401, 27117, 29475, 32775, 37335, 45195, 57247, 62225, 75325, 98325, 112005, 135585, 171741, 186675, 225975, 286235, 515223, 560025, 677925, 858705, 1431175, 2576115, 4293525, 12880575]

約数ペア:

[(1, 12880575), (3, 4293525), (5, 2576115), (9, 1431175), (15, 858705), (19, 677925), (23, 560025), (25, 515223), (45, 286235), (57, 225975), (69, 186675), (75, 171741), (95, 135585), (115, 112005), (131, 98325), (171, 75325), (207, 62225), (225, 57247), (285, 45195), (345, 37335), (393, 32775), (437, 29475), (475, 27117), (575, 22401), (655, 19665), (855, 15065), (1035, 12445), (1179, 10925), (1311, 9825), (1425, 9039), (1725, 7467), (1965, 6555), (2185, 5895), (2489, 5175), (3013, 4275), (3275, 3933)]