20107918544

素因数分解:

$2^4\times 7^1\times {\mathrm{23}}^1\times {\mathrm{971}}^1\times {\mathrm{8039}}^1$

素因数の和:9048

約数の個数: 80

約数和(自身を含む): 46514165760

約数和(自身を除く): 26406247216

約数列:

[1, 2, 4, 7, 8, 14, 16, 23, 28, 46, 56, 92, 112, 161, 184, 322, 368, 644, 971, 1288, 1942, 2576, 3884, 6797, 7768, 8039, 13594, 15536, 16078, 22333, 27188, 32156, 44666, 54376, 56273, 64312, 89332, 108752, 112546, 128624, 156331, 178664, 184897, 225092, 312662, 357328, 369794, 450184, 625324, 739588, 900368, 1250648, 1294279, 1479176, 2501296, 2588558, 2958352, 5177116, 7805869, 10354232, 15611738, 20708464, 31223476, 54641083, 62446952, 109282166, 124893904, 179534987, 218564332, 359069974, 437128664, 718139948, 874257328, 1256744909, 1436279896, 2513489818, 2872559792, 5026979636, 10053959272, 20107918544]

約数ペア:

[(1, 20107918544), (2, 10053959272), (4, 5026979636), (7, 2872559792), (8, 2513489818), (14, 1436279896), (16, 1256744909), (23, 874257328), (28, 718139948), (46, 437128664), (56, 359069974), (92, 218564332), (112, 179534987), (161, 124893904), (184, 109282166), (322, 62446952), (368, 54641083), (644, 31223476), (971, 20708464), (1288, 15611738), (1942, 10354232), (2576, 7805869), (3884, 5177116), (6797, 2958352), (7768, 2588558), (8039, 2501296), (13594, 1479176), (15536, 1294279), (16078, 1250648), (22333, 900368), (27188, 739588), (32156, 625324), (44666, 450184), (54376, 369794), (56273, 357328), (64312, 312662), (89332, 225092), (108752, 184897), (112546, 178664), (128624, 156331)]