19950304

素因数分解:

$2^5\times {\mathrm{11}}^1\times {\mathrm{19}}^2\times {\mathrm{157}}^1$

素因数の和:216

約数の個数: 72

約数和(自身を含む): 45509688

約数和(自身を除く): 25559384

約数列:

[1, 2, 4, 8, 11, 16, 19, 22, 32, 38, 44, 76, 88, 152, 157, 176, 209, 304, 314, 352, 361, 418, 608, 628, 722, 836, 1256, 1444, 1672, 1727, 2512, 2888, 2983, 3344, 3454, 3971, 5024, 5776, 5966, 6688, 6908, 7942, 11552, 11932, 13816, 15884, 23864, 27632, 31768, 32813, 47728, 55264, 56677, 63536, 65626, 95456, 113354, 127072, 131252, 226708, 262504, 453416, 525008, 623447, 906832, 1050016, 1246894, 1813664, 2493788, 4987576, 9975152, 19950304]

約数ペア:

[(1, 19950304), (2, 9975152), (4, 4987576), (8, 2493788), (11, 1813664), (16, 1246894), (19, 1050016), (22, 906832), (32, 623447), (38, 525008), (44, 453416), (76, 262504), (88, 226708), (152, 131252), (157, 127072), (176, 113354), (209, 95456), (304, 65626), (314, 63536), (352, 56677), (361, 55264), (418, 47728), (608, 32813), (628, 31768), (722, 27632), (836, 23864), (1256, 15884), (1444, 13816), (1672, 11932), (1727, 11552), (2512, 7942), (2888, 6908), (2983, 6688), (3344, 5966), (3454, 5776), (3971, 5024)]