778847980

素因数分解:

$2^2\times 5^1\times {\mathrm{113}}^1\times {\mathrm{251}}^1\times {\mathrm{1373}}^1$

素因数の和:1746

約数の個数: 48

約数和(自身を含む): 1657835424

約数和(自身を除く): 878987444

約数列:

[1, 2, 4, 5, 10, 20, 113, 226, 251, 452, 502, 565, 1004, 1130, 1255, 1373, 2260, 2510, 2746, 5020, 5492, 6865, 13730, 27460, 28363, 56726, 113452, 141815, 155149, 283630, 310298, 344623, 567260, 620596, 689246, 775745, 1378492, 1551490, 1723115, 3102980, 3446230, 6892460, 38942399, 77884798, 155769596, 194711995, 389423990, 778847980]

約数ペア:

[(1, 778847980), (2, 389423990), (4, 194711995), (5, 155769596), (10, 77884798), (20, 38942399), (113, 6892460), (226, 3446230), (251, 3102980), (452, 1723115), (502, 1551490), (565, 1378492), (1004, 775745), (1130, 689246), (1255, 620596), (1373, 567260), (2260, 344623), (2510, 310298), (2746, 283630), (5020, 155149), (5492, 141815), (6865, 113452), (13730, 56726), (27460, 28363)]