128742840

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{357619}}^1$

素因数の和:357636

約数の個数: 48

約数和(自身を含む): 418415400

約数和(自身を除く): 289672560

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 120, 180, 360, 357619, 715238, 1072857, 1430476, 1788095, 2145714, 2860952, 3218571, 3576190, 4291428, 5364285, 6437142, 7152380, 8582856, 10728570, 12874284, 14304760, 16092855, 21457140, 25748568, 32185710, 42914280, 64371420, 128742840]

約数ペア:

[(1, 128742840), (2, 64371420), (3, 42914280), (4, 32185710), (5, 25748568), (6, 21457140), (8, 16092855), (9, 14304760), (10, 12874284), (12, 10728570), (15, 8582856), (18, 7152380), (20, 6437142), (24, 5364285), (30, 4291428), (36, 3576190), (40, 3218571), (45, 2860952), (60, 2145714), (72, 1788095), (90, 1430476), (120, 1072857), (180, 715238), (360, 357619)]