388755220

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{173}}^1\times {\mathrm{2293}}^1$

素因数の和:2489

約数の個数: 72

約数和(自身を含む): 955579464

約数和(自身を除く): 566824244

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 173, 196, 245, 346, 490, 692, 865, 980, 1211, 1730, 2293, 2422, 3460, 4586, 4844, 6055, 8477, 9172, 11465, 12110, 16051, 16954, 22930, 24220, 32102, 33908, 42385, 45860, 64204, 80255, 84770, 112357, 160510, 169540, 224714, 321020, 396689, 449428, 561785, 793378, 1123570, 1586756, 1983445, 2247140, 2776823, 3966890, 5553646, 7933780, 11107292, 13884115, 19437761, 27768230, 38875522, 55536460, 77751044, 97188805, 194377610, 388755220]

約数ペア:

[(1, 388755220), (2, 194377610), (4, 97188805), (5, 77751044), (7, 55536460), (10, 38875522), (14, 27768230), (20, 19437761), (28, 13884115), (35, 11107292), (49, 7933780), (70, 5553646), (98, 3966890), (140, 2776823), (173, 2247140), (196, 1983445), (245, 1586756), (346, 1123570), (490, 793378), (692, 561785), (865, 449428), (980, 396689), (1211, 321020), (1730, 224714), (2293, 169540), (2422, 160510), (3460, 112357), (4586, 84770), (4844, 80255), (6055, 64204), (8477, 45860), (9172, 42385), (11465, 33908), (12110, 32102), (16051, 24220), (16954, 22930)]