291275980

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{151}}^1\times {\mathrm{2243}}^1$

素因数の和:2446

約数の個数: 48

約数和(自身を含む): 630330624

約数和(自身を除く): 339054644

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 151, 172, 215, 302, 430, 604, 755, 860, 1510, 2243, 3020, 4486, 6493, 8972, 11215, 12986, 22430, 25972, 32465, 44860, 64930, 96449, 129860, 192898, 338693, 385796, 482245, 677386, 964490, 1354772, 1693465, 1928980, 3386930, 6773860, 14563799, 29127598, 58255196, 72818995, 145637990, 291275980]

約数ペア:

[(1, 291275980), (2, 145637990), (4, 72818995), (5, 58255196), (10, 29127598), (20, 14563799), (43, 6773860), (86, 3386930), (151, 1928980), (172, 1693465), (215, 1354772), (302, 964490), (430, 677386), (604, 482245), (755, 385796), (860, 338693), (1510, 192898), (2243, 129860), (3020, 96449), (4486, 64930), (6493, 44860), (8972, 32465), (11215, 25972), (12986, 22430)]