128806398

素因数分解:

$2^1\times 3^2\times 7^2\times {\mathrm{37}}^1\times {\mathrm{3947}}^1$

素因数の和:4006

約数の個数: 72

約数和(自身を含む): 333503352

約数和(自身を除く): 204696954

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 37, 42, 49, 63, 74, 98, 111, 126, 147, 222, 259, 294, 333, 441, 518, 666, 777, 882, 1554, 1813, 2331, 3626, 3947, 4662, 5439, 7894, 10878, 11841, 16317, 23682, 27629, 32634, 35523, 55258, 71046, 82887, 146039, 165774, 193403, 248661, 292078, 386806, 438117, 497322, 580209, 876234, 1022273, 1160418, 1314351, 1740627, 2044546, 2628702, 3066819, 3481254, 6133638, 7155911, 9200457, 14311822, 18400914, 21467733, 42935466, 64403199, 128806398]

約数ペア:

[(1, 128806398), (2, 64403199), (3, 42935466), (6, 21467733), (7, 18400914), (9, 14311822), (14, 9200457), (18, 7155911), (21, 6133638), (37, 3481254), (42, 3066819), (49, 2628702), (63, 2044546), (74, 1740627), (98, 1314351), (111, 1160418), (126, 1022273), (147, 876234), (222, 580209), (259, 497322), (294, 438117), (333, 386806), (441, 292078), (518, 248661), (666, 193403), (777, 165774), (882, 146039), (1554, 82887), (1813, 71046), (2331, 55258), (3626, 35523), (3947, 32634), (4662, 27629), (5439, 23682), (7894, 16317), (10878, 11841)]