19047880

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{353}}^1$

素因数の和:454

約数の個数: 64

約数和(自身を含む): 45878400

約数和(自身を除く): 26830520

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 71, 76, 95, 142, 152, 190, 284, 353, 355, 380, 568, 706, 710, 760, 1349, 1412, 1420, 1765, 2698, 2824, 2840, 3530, 5396, 6707, 6745, 7060, 10792, 13414, 13490, 14120, 25063, 26828, 26980, 33535, 50126, 53656, 53960, 67070, 100252, 125315, 134140, 200504, 250630, 268280, 476197, 501260, 952394, 1002520, 1904788, 2380985, 3809576, 4761970, 9523940, 19047880]

約数ペア:

[(1, 19047880), (2, 9523940), (4, 4761970), (5, 3809576), (8, 2380985), (10, 1904788), (19, 1002520), (20, 952394), (38, 501260), (40, 476197), (71, 268280), (76, 250630), (95, 200504), (142, 134140), (152, 125315), (190, 100252), (284, 67070), (353, 53960), (355, 53656), (380, 50126), (568, 33535), (706, 26980), (710, 26828), (760, 25063), (1349, 14120), (1412, 13490), (1420, 13414), (1765, 10792), (2698, 7060), (2824, 6745), (2840, 6707), (3530, 5396)]