19467980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{241}}^1\times {\mathrm{577}}^1$

素因数の和:834

約数の個数: 48

約数和(自身を含む): 46998336

約数和(自身を除く): 27530356

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 241, 482, 577, 964, 1154, 1205, 1687, 2308, 2410, 2885, 3374, 4039, 4820, 5770, 6748, 8078, 8435, 11540, 16156, 16870, 20195, 33740, 40390, 80780, 139057, 278114, 556228, 695285, 973399, 1390570, 1946798, 2781140, 3893596, 4866995, 9733990, 19467980]

約数ペア:

[(1, 19467980), (2, 9733990), (4, 4866995), (5, 3893596), (7, 2781140), (10, 1946798), (14, 1390570), (20, 973399), (28, 695285), (35, 556228), (70, 278114), (140, 139057), (241, 80780), (482, 40390), (577, 33740), (964, 20195), (1154, 16870), (1205, 16156), (1687, 11540), (2308, 8435), (2410, 8078), (2885, 6748), (3374, 5770), (4039, 4820)]