209895498

素因数分解:

$2^1\times 3^2\times {\mathrm{17}}^2\times {\mathrm{157}}^1\times {\mathrm{257}}^1$

素因数の和:456

約数の個数: 72

約数和(自身を含む): 488067372

約数和(自身を除く): 278171874

約数列:

[1, 2, 3, 6, 9, 17, 18, 34, 51, 102, 153, 157, 257, 289, 306, 314, 471, 514, 578, 771, 867, 942, 1413, 1542, 1734, 2313, 2601, 2669, 2826, 4369, 4626, 5202, 5338, 8007, 8738, 13107, 16014, 24021, 26214, 39321, 40349, 45373, 48042, 74273, 78642, 80698, 90746, 121047, 136119, 148546, 222819, 242094, 272238, 363141, 408357, 445638, 668457, 685933, 726282, 816714, 1336914, 1371866, 2057799, 4115598, 6173397, 11660861, 12346794, 23321722, 34982583, 69965166, 104947749, 209895498]

約数ペア:

[(1, 209895498), (2, 104947749), (3, 69965166), (6, 34982583), (9, 23321722), (17, 12346794), (18, 11660861), (34, 6173397), (51, 4115598), (102, 2057799), (153, 1371866), (157, 1336914), (257, 816714), (289, 726282), (306, 685933), (314, 668457), (471, 445638), (514, 408357), (578, 363141), (771, 272238), (867, 242094), (942, 222819), (1413, 148546), (1542, 136119), (1734, 121047), (2313, 90746), (2601, 80698), (2669, 78642), (2826, 74273), (4369, 48042), (4626, 45373), (5202, 40349), (5338, 39321), (8007, 26214), (8738, 24021), (13107, 16014)]