260187760

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{464621}}^1$

素因数の和:464641

約数の個数: 40

約数和(自身を含む): 691357536

約数和(自身を除く): 431169776

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 464621, 929242, 1858484, 2323105, 3252347, 3716968, 4646210, 6504694, 7433936, 9292420, 13009388, 16261735, 18584840, 26018776, 32523470, 37169680, 52037552, 65046940, 130093880, 260187760]

約数ペア:

[(1, 260187760), (2, 130093880), (4, 65046940), (5, 52037552), (7, 37169680), (8, 32523470), (10, 26018776), (14, 18584840), (16, 16261735), (20, 13009388), (28, 9292420), (35, 7433936), (40, 6504694), (56, 4646210), (70, 3716968), (80, 3252347), (112, 2323105), (140, 1858484), (280, 929242), (560, 464621)]