28293722500

素因数分解:

$2^2\times 5^4\times {\mathrm{1669}}^1\times {\mathrm{6781}}^1$

素因数の和:8474

約数の個数: 60

約数和(自身を含む): 61918913980

約数和(自身を除く): 33625191480

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 125, 250, 500, 625, 1250, 1669, 2500, 3338, 6676, 6781, 8345, 13562, 16690, 27124, 33380, 33905, 41725, 67810, 83450, 135620, 166900, 169525, 208625, 339050, 417250, 678100, 834500, 847625, 1043125, 1695250, 2086250, 3390500, 4172500, 4238125, 8476250, 11317489, 16952500, 22634978, 45269956, 56587445, 113174890, 226349780, 282937225, 565874450, 1131748900, 1414686125, 2829372250, 5658744500, 7073430625, 14146861250, 28293722500]

約数ペア:

[(1, 28293722500), (2, 14146861250), (4, 7073430625), (5, 5658744500), (10, 2829372250), (20, 1414686125), (25, 1131748900), (50, 565874450), (100, 282937225), (125, 226349780), (250, 113174890), (500, 56587445), (625, 45269956), (1250, 22634978), (1669, 16952500), (2500, 11317489), (3338, 8476250), (6676, 4238125), (6781, 4172500), (8345, 3390500), (13562, 2086250), (16690, 1695250), (27124, 1043125), (33380, 847625), (33905, 834500), (41725, 678100), (67810, 417250), (83450, 339050), (135620, 208625), (166900, 169525)]