19987032

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{47}}^2$

素因数の和:145

約数の個数: 96

約数和(自身を含む): 56876400

約数和(自身を除く): 36889368

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 29, 39, 47, 52, 58, 78, 87, 94, 104, 116, 141, 156, 174, 188, 232, 282, 312, 348, 376, 377, 564, 611, 696, 754, 1128, 1131, 1222, 1363, 1508, 1833, 2209, 2262, 2444, 2726, 3016, 3666, 4089, 4418, 4524, 4888, 5452, 6627, 7332, 8178, 8836, 9048, 10904, 13254, 14664, 16356, 17672, 17719, 26508, 28717, 32712, 35438, 53016, 53157, 57434, 64061, 70876, 86151, 106314, 114868, 128122, 141752, 172302, 192183, 212628, 229736, 256244, 344604, 384366, 425256, 512488, 689208, 768732, 832793, 1537464, 1665586, 2498379, 3331172, 4996758, 6662344, 9993516, 19987032]

約数ペア:

[(1, 19987032), (2, 9993516), (3, 6662344), (4, 4996758), (6, 3331172), (8, 2498379), (12, 1665586), (13, 1537464), (24, 832793), (26, 768732), (29, 689208), (39, 512488), (47, 425256), (52, 384366), (58, 344604), (78, 256244), (87, 229736), (94, 212628), (104, 192183), (116, 172302), (141, 141752), (156, 128122), (174, 114868), (188, 106314), (232, 86151), (282, 70876), (312, 64061), (348, 57434), (376, 53157), (377, 53016), (564, 35438), (611, 32712), (696, 28717), (754, 26508), (1128, 17719), (1131, 17672), (1222, 16356), (1363, 14664), (1508, 13254), (1833, 10904), (2209, 9048), (2262, 8836), (2444, 8178), (2726, 7332), (3016, 6627), (3666, 5452), (4089, 4888), (4418, 4524)]