261958520

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{263}}^1\times {\mathrm{673}}^1$

素因数の和:984

約数の個数: 64

約数和(自身を含む): 608541120

約数和(自身を除く): 346582600

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 74, 148, 185, 263, 296, 370, 526, 673, 740, 1052, 1315, 1346, 1480, 2104, 2630, 2692, 3365, 5260, 5384, 6730, 9731, 10520, 13460, 19462, 24901, 26920, 38924, 48655, 49802, 77848, 97310, 99604, 124505, 176999, 194620, 199208, 249010, 353998, 389240, 498020, 707996, 884995, 996040, 1415992, 1769990, 3539980, 6548963, 7079960, 13097926, 26195852, 32744815, 52391704, 65489630, 130979260, 261958520]

約数ペア:

[(1, 261958520), (2, 130979260), (4, 65489630), (5, 52391704), (8, 32744815), (10, 26195852), (20, 13097926), (37, 7079960), (40, 6548963), (74, 3539980), (148, 1769990), (185, 1415992), (263, 996040), (296, 884995), (370, 707996), (526, 498020), (673, 389240), (740, 353998), (1052, 249010), (1315, 199208), (1346, 194620), (1480, 176999), (2104, 124505), (2630, 99604), (2692, 97310), (3365, 77848), (5260, 49802), (5384, 48655), (6730, 38924), (9731, 26920), (10520, 24901), (13460, 19462)]