20121012756

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{544223}}^1$

素因数の和:544325

約数の個数: 72

約数和(自身を含む): 55467310080

約数和(自身を除く): 35346297324

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 39, 52, 78, 79, 117, 156, 158, 234, 237, 316, 468, 474, 711, 948, 1027, 1422, 2054, 2844, 3081, 4108, 6162, 9243, 12324, 18486, 36972, 544223, 1088446, 1632669, 2176892, 3265338, 4898007, 6530676, 7074899, 9796014, 14149798, 19592028, 21224697, 28299596, 42449394, 42993617, 63674091, 84898788, 85987234, 127348182, 128980851, 171974468, 254696364, 257961702, 386942553, 515923404, 558917021, 773885106, 1117834042, 1547770212, 1676751063, 2235668084, 3353502126, 5030253189, 6707004252, 10060506378, 20121012756]

約数ペア:

[(1, 20121012756), (2, 10060506378), (3, 6707004252), (4, 5030253189), (6, 3353502126), (9, 2235668084), (12, 1676751063), (13, 1547770212), (18, 1117834042), (26, 773885106), (36, 558917021), (39, 515923404), (52, 386942553), (78, 257961702), (79, 254696364), (117, 171974468), (156, 128980851), (158, 127348182), (234, 85987234), (237, 84898788), (316, 63674091), (468, 42993617), (474, 42449394), (711, 28299596), (948, 21224697), (1027, 19592028), (1422, 14149798), (2054, 9796014), (2844, 7074899), (3081, 6530676), (4108, 4898007), (6162, 3265338), (9243, 2176892), (12324, 1632669), (18486, 1088446), (36972, 544223)]