21920158064

素因数分解:

$2^4\times 7^1\times {\mathrm{53}}^1\times {\mathrm{643}}^1\times {\mathrm{5743}}^1$

素因数の和:6454

約数の個数: 80

約数和(自身を含む): 49538829312

約数和(自身を除く): 27618671248

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 53, 56, 106, 112, 212, 371, 424, 643, 742, 848, 1286, 1484, 2572, 2968, 4501, 5144, 5743, 5936, 9002, 10288, 11486, 18004, 22972, 34079, 36008, 40201, 45944, 68158, 72016, 80402, 91888, 136316, 160804, 238553, 272632, 304379, 321608, 477106, 545264, 608758, 643216, 954212, 1217516, 1908424, 2130653, 2435032, 3692749, 3816848, 4261306, 4870064, 7385498, 8522612, 14770996, 17045224, 25849243, 29541992, 34090448, 51698486, 59083984, 103396972, 195715697, 206793944, 391431394, 413587888, 782862788, 1370009879, 1565725576, 2740019758, 3131451152, 5480039516, 10960079032, 21920158064]

約数ペア:

[(1, 21920158064), (2, 10960079032), (4, 5480039516), (7, 3131451152), (8, 2740019758), (14, 1565725576), (16, 1370009879), (28, 782862788), (53, 413587888), (56, 391431394), (106, 206793944), (112, 195715697), (212, 103396972), (371, 59083984), (424, 51698486), (643, 34090448), (742, 29541992), (848, 25849243), (1286, 17045224), (1484, 14770996), (2572, 8522612), (2968, 7385498), (4501, 4870064), (5144, 4261306), (5743, 3816848), (5936, 3692749), (9002, 2435032), (10288, 2130653), (11486, 1908424), (18004, 1217516), (22972, 954212), (34079, 643216), (36008, 608758), (40201, 545264), (45944, 477106), (68158, 321608), (72016, 304379), (80402, 272632), (91888, 238553), (136316, 160804)]