4076720

素因数分解:

$2^4\times 5^1\times {\mathrm{131}}^1\times {\mathrm{389}}^1$

素因数の和:533

約数の個数: 40

約数和(自身を含む): 9575280

約数和(自身を除く): 5498560

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 131, 262, 389, 524, 655, 778, 1048, 1310, 1556, 1945, 2096, 2620, 3112, 3890, 5240, 6224, 7780, 10480, 15560, 31120, 50959, 101918, 203836, 254795, 407672, 509590, 815344, 1019180, 2038360, 4076720]

約数ペア:

[(1, 4076720), (2, 2038360), (4, 1019180), (5, 815344), (8, 509590), (10, 407672), (16, 254795), (20, 203836), (40, 101918), (80, 50959), (131, 31120), (262, 15560), (389, 10480), (524, 7780), (655, 6224), (778, 5240), (1048, 3890), (1310, 3112), (1556, 2620), (1945, 2096)]