138811470

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{331}}^1\times {\mathrm{1997}}^1$

素因数の和:2345

約数の個数: 64

約数和(自身を含む): 382081536

約数和(自身を除く): 243270066

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 105, 210, 331, 662, 993, 1655, 1986, 1997, 2317, 3310, 3994, 4634, 4965, 5991, 6951, 9930, 9985, 11585, 11982, 13902, 13979, 19970, 23170, 27958, 29955, 34755, 41937, 59910, 69510, 69895, 83874, 139790, 209685, 419370, 661007, 1322014, 1983021, 3305035, 3966042, 4627049, 6610070, 9254098, 9915105, 13881147, 19830210, 23135245, 27762294, 46270490, 69405735, 138811470]

約数ペア:

[(1, 138811470), (2, 69405735), (3, 46270490), (5, 27762294), (6, 23135245), (7, 19830210), (10, 13881147), (14, 9915105), (15, 9254098), (21, 6610070), (30, 4627049), (35, 3966042), (42, 3305035), (70, 1983021), (105, 1322014), (210, 661007), (331, 419370), (662, 209685), (993, 139790), (1655, 83874), (1986, 69895), (1997, 69510), (2317, 59910), (3310, 41937), (3994, 34755), (4634, 29955), (4965, 27958), (5991, 23170), (6951, 19970), (9930, 13979), (9985, 13902), (11585, 11982)]