201998170

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{1601}}^1$

素因数の和:1687

約数の個数: 64

約数和(自身を含む): 420774912

約数和(自身を除く): 218776742

約数列:

[1, 2, 5, 10, 11, 22, 31, 37, 55, 62, 74, 110, 155, 185, 310, 341, 370, 407, 682, 814, 1147, 1601, 1705, 2035, 2294, 3202, 3410, 4070, 5735, 8005, 11470, 12617, 16010, 17611, 25234, 35222, 49631, 59237, 63085, 88055, 99262, 118474, 126170, 176110, 248155, 296185, 496310, 545941, 592370, 651607, 1091882, 1303214, 1836347, 2729705, 3258035, 3672694, 5459410, 6516070, 9181735, 18363470, 20199817, 40399634, 100999085, 201998170]

約数ペア:

[(1, 201998170), (2, 100999085), (5, 40399634), (10, 20199817), (11, 18363470), (22, 9181735), (31, 6516070), (37, 5459410), (55, 3672694), (62, 3258035), (74, 2729705), (110, 1836347), (155, 1303214), (185, 1091882), (310, 651607), (341, 592370), (370, 545941), (407, 496310), (682, 296185), (814, 248155), (1147, 176110), (1601, 126170), (1705, 118474), (2035, 99262), (2294, 88055), (3202, 63085), (3410, 59237), (4070, 49631), (5735, 35222), (8005, 25234), (11470, 17611), (12617, 16010)]