17922340

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{137}}^1\times {\mathrm{211}}^1$

素因数の和:388

約数の個数: 48

約数和(自身を含む): 39320064

約数和(自身を除く): 21397724

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 137, 155, 211, 274, 310, 422, 548, 620, 685, 844, 1055, 1370, 2110, 2740, 4220, 4247, 6541, 8494, 13082, 16988, 21235, 26164, 28907, 32705, 42470, 57814, 65410, 84940, 115628, 130820, 144535, 289070, 578140, 896117, 1792234, 3584468, 4480585, 8961170, 17922340]

約数ペア:

[(1, 17922340), (2, 8961170), (4, 4480585), (5, 3584468), (10, 1792234), (20, 896117), (31, 578140), (62, 289070), (124, 144535), (137, 130820), (155, 115628), (211, 84940), (274, 65410), (310, 57814), (422, 42470), (548, 32705), (620, 28907), (685, 26164), (844, 21235), (1055, 16988), (1370, 13082), (2110, 8494), (2740, 6541), (4220, 4247)]