290420780

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{461}}^1\times {\mathrm{2423}}^1$

素因数の和:2906

約数の個数: 48

約数和(自身を含む): 658494144

約数和(自身を除く): 368073364

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 461, 922, 1844, 2305, 2423, 4610, 4846, 5993, 9220, 9692, 11986, 12115, 23972, 24230, 29965, 31499, 48460, 59930, 62998, 119860, 125996, 157495, 314990, 629980, 1117003, 2234006, 4468012, 5585015, 11170030, 14521039, 22340060, 29042078, 58084156, 72605195, 145210390, 290420780]

約数ペア:

[(1, 290420780), (2, 145210390), (4, 72605195), (5, 58084156), (10, 29042078), (13, 22340060), (20, 14521039), (26, 11170030), (52, 5585015), (65, 4468012), (130, 2234006), (260, 1117003), (461, 629980), (922, 314990), (1844, 157495), (2305, 125996), (2423, 119860), (4610, 62998), (4846, 59930), (5993, 48460), (9220, 31499), (9692, 29965), (11986, 24230), (12115, 23972)]