20571828470

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{101}}^1\times {\mathrm{103}}^1\times {\mathrm{6379}}^1$

素因数の和:6621

約数の個数: 64

約数和(自身を含む): 38983127040

約数和(自身を除く): 18411298570

約数列:

[1, 2, 5, 10, 31, 62, 101, 103, 155, 202, 206, 310, 505, 515, 1010, 1030, 3131, 3193, 6262, 6379, 6386, 10403, 12758, 15655, 15965, 20806, 31310, 31895, 31930, 52015, 63790, 104030, 197749, 322493, 395498, 644279, 644986, 657037, 988745, 1288558, 1314074, 1612465, 1977490, 3221395, 3224930, 3285185, 6442790, 6570370, 19972649, 20368147, 39945298, 40736294, 66360737, 99863245, 101840735, 132721474, 199726490, 203681470, 331803685, 663607370, 2057182847, 4114365694, 10285914235, 20571828470]

約数ペア:

[(1, 20571828470), (2, 10285914235), (5, 4114365694), (10, 2057182847), (31, 663607370), (62, 331803685), (101, 203681470), (103, 199726490), (155, 132721474), (202, 101840735), (206, 99863245), (310, 66360737), (505, 40736294), (515, 39945298), (1010, 20368147), (1030, 19972649), (3131, 6570370), (3193, 6442790), (6262, 3285185), (6379, 3224930), (6386, 3221395), (10403, 1977490), (12758, 1612465), (15655, 1314074), (15965, 1288558), (20806, 988745), (31310, 657037), (31895, 644986), (31930, 644279), (52015, 395498), (63790, 322493), (104030, 197749)]